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Murmansk Expedition (later designated American Expeditionary
Force, North Russia) arrives at Archangel, Russia.
-16 September, St. Mihiel Campaign.

-11 November, Meuse-Argonne Campaign.
Military Police Corps established in the AEF.
- November, Vittorio Veneto Campaign,
Armistice signed in Forest of Compiegne, France, at 5 AM, to take
effect 11 AM.
American Third Army designated the Army of Occupation (Ger-
Treaty of Versailles signed; never ratified by U. S.
Pershing designated General of the Armies.
American expedition to Siberia withdrawn.
Army Chemical Corps and Army Finance Department established.
War Department acts to extend general staff concept to field estab-
Joint resolution of Congress declares war with Germany at end.
Senate approves separate treaty of peace, which was signed 25
August with Germany, officially closing World War I.
American Unknown Soldier (of World War I) buried at Arlington
National Cemetery.
American flag lowered from Fortress Ehrenbreitstein at Coblenz, end-
ing the American occupation of Germany.
First term of Army Industrial College opens.
Soldiers' Bonus Bill passed over President's veto.
An Act of Congress establishes the Air Corps of the U. S. Army.
Charles A. Lindbergh makes solo nonstop flight from Mineola, New
York, to Paris; time, 3372 hours.
The Kellogg-Briand Pact, signed at Paris, outlaws war as an instru-
ment of national policy.
Chief of Staff given rank of general by Congress.
--22 April. The London Naval Conference results in three-power
treaty between the United States, Great Britain, and Japan.
Japan marches into Manchuria in violation of Kellogg-Briand Pact.
Six Army bombers drop over five tons of rations to snowbound
Navajo Indians near Winslow, Arizona, saving hundreds of lives.
War Department Industrial Mobilization Plan, 1930, approved.
Capt. Albert F. Hegenberger, Army Air Corps, makes first solo air-
plane flight entirely by instruments.
Bonus Marchers in Washington dispersed by Army troops under
General Douglas MacArthur upon order of the President.
Adolf Hitler becomes Chancellor of Germany.
Civilian Conservation Corps established. Placed under Army control
10 April
An Act of Congress (1) provides for National Guard Bureau; (2)
prescribes the organization of the National Guard and the Army
of the United States; and (3) provides for emergency use of National
A General Headquarters Air Force established.
Garand rifle standardized.
Germany reoccupies Rhineland in violation of Treaty of Versailles.
Stratosphere flight made by Army pilots in balloon "Explorer” over
South Dakota, reaching an altitude of 14 miles.
Army issues new Protective Mobilization Plan.
Japanese airmen sink U. S. gunboat Panay in Chinese waters.
German Army invades Austria.
By the Munich Conference and Agreement Hitler acquires all of
Sudetenland from Czechoslovakia.
Czechoslovakia dismembered by Hitler and placed under German
German-Russian nonaggression pact signed at Moscow.
England and Poland sign mutual assistance pact.
Germany attacks Poland. Beginning of World War II.
The U. S. proclaims neutrality in the European War.
Limited national emergency declared by President.
An entire battalion is airborne for first time in American history
as Regular Army troops fly 500 miles in 38 bombers and land deep
in territory of “enemy."
Congress provides that service in the Army during time of war will
be for the duration plus six months.
War Department releases war material to Great Britain upon ap-
peal to U. S. Government by Prime Minister Churchill.
Armored Force established.
Test Parachute Platoon organized by Chief of Infantry.
Congress authorizes the President to call into active service members
of the reserve components for a period of 12 months.
Fifty American destroyers transferred to Great Britain in exchange
for lease of naval and air bases in British possessions in Western
Congress provides for Selective Service to increase the armed
forces, and provides for: (a) draft quotas; (b) training of draftees.
Peacetime compulsory military service inaugurated when Secretary
of War Stimson draws number 158 from lottery bowl.
Congress passes Lend-Lease Act.
Air Corps Ferrying Command established; redesignated Air Transport
Command on 20 June 1942.

3 March
9 May

28 July


30 January
31 March

15 June


1 March
9 January
7 March
11 November


23 April
12 December
12 March
29 September



10-16 March

23 August
24 August
1 September
5 September
8 September
23 January


14 May

3 June

10 July
18 July
27 August

3 September

16 September

29 October


11 March 20 March

27 March


20 June

7 July 31 July 14 August

18 August

6 November

7 December

7 December 7 December

President Roosevelt proclaims unlimited state of national
Army Air Forces established.
U. S. forces land in Iceland.
Military Police Corps established.
Atlantic Charter (joint declaration of peace alms) issued by Roose-
velt and Churchill.
Bill signed permitting Army to keep men in service 18 months or
U. S. extends credit of $1 billion to Soviet Government for purchase
of American supplies.
"Pearl Harbor Day." Without warning, Japanese planes bomb Pearl
Harbor and Hickam and Wheeler Airfields on Oahu, and Midway
Island; and Japan declares war on the U. S. and Great Britain.
-10 May, 1942, Philippine Islands Campaign, World War II.
-26_May 1942, Burma 1942 Campaign.

-6 December 1943, Central Pacific Campaign.
United States declares a state of war with Japan.
Japanese bomb islands of Wake and Guam, Clark and Iba Airflelds
in the Philippines; invade Malaya and Thailand, and selze Inter-
national Settlement at Shanghai.
Japanese bomb Nichols Field near Manlla.
Japanese capture Guam, and begin landings on North Luzon.
Germany and Italy declare war on the United States.
Chennault's American Volunteer Group (Flying Tigers) enters com-
bat against Japanese in China.
Japanese begin main landings along coast of Lingayen Gulf on
Luzon, P. I.
-7 January 1942, Gen. Douglas MacArthur evacuates Manila and
withdraws to Bataan,
Japan captures Wake Island.
-14 January 1942, Anglo-American Conference (ARCADIA) meets in
-22 July, East Indies Campaign.
Siege of Bataan begins.
The Combined Chiefs of Staff (American and British), to conduct
high-level control of war, are established; also the U. S. Joint Chiefs
of Staff.
American-British-Dutch-Australian Command (ABDA) opens on
First convoy of American troops arrives in Northern Ireland.
Navy launches surprise air and surface attack against Japanese
bases on Gilbert and Marshall Islands.
Gen. Joseph W. Stilwell designated Chief of Staff to Supreme Com-
mander (Chiang Kai-Shek), China Theater.
Enemy submarine shells oil refinery near Santa Barbara (Cal.); first
and most serious of Japanese attacks on U. S. mainland.
ABDA Command dissolved.
Battle of Java Sea; organized Allied naval resistance in that area
Japanese land at Salamaua and Lae, New Guinea: occupy Burma,
closing Burma Road; and complete the conquest of Java.
Antiaircraft Command established. War Department reorganized;
Army Ground Forces, Army Air Forces, and Services of Supply (later
Army Service Forces) established.
Army units land in Australia. MacArthur arrives 17 March.
Pacific Theater established.
MacArthur designated Allied Supreme Commander, Southwest Pacific
Area; Adm. Chester Nimitz designated Commander-in-Chief, Pacific
Ocean Areas.
U. S. forces on Bataan surrender.
-3 September 1945, Air Offensive, Japan.
16 planes from carrier Hornet, led by Lt. Col James H. Doolittle,
bomb Tokyo.
Gen. Jonathan Wainwright forced to surrender unconditionally all
U. S. forces in the Philippines.
Battle of the Coral Sea.
Women's Army Corps (originally Women's Army Auxiliary Corps)
-24 August 1943, Aleutian Islands Campaign.
Battle of Midway.
Japanese land on Attu and Kiska, Aleutian Islands.
European Theater of Operations established.
U. s. air forces bomb oilfield at Ploesti, Rumania.
Japanese submarine shells Ft. Stevens Military Reservation at mouth
of Columbia River; first foreign attack on a continental military
installation since War of 1812.
Stilwell becomes commander of U. S. forces in CBI Theatre.
-4 May 1945, China Defensive.
-5 June 1944, Air Offensive, Europe.
-12 February 1943, Egypt-Libya Campaign.
-23 January 1943, Papua Campaign.
Transportation Corps established.
-21 February 1943, Guadalcanal Campaign,

8 December

9 December 10 December 11 December 20 December

22 December

23 December

24 December


1 January
7 January
9 January

15 January

26 January
1 February

2 February

23 February

25 February 27-28 February

7 March

9 March

16 March 24 March 30 March

9 April 17 April 18 April

6 May

8 May
14 May

3 June
3-4 June
7 June
8 June
12 June
22 June

4 July
4 July
11 July
23 July
31 July
7 August



17 August First operation of Eighth Air Force; 12 B-17's attack rall center

at Rouen, France. 24 August

Naval Battle of Eastern Solomons. 30 August U. 8. occupation forces land on Adak, Aleutian Islands, without

opposition. 9 September Japanese plane, launched from submarine off coast, drops incendiary

bomb on mountain slope near Brookings, Oregon, causing small forest fire. This is the sole bombing by plane of continental U. S.

during the war. 22 October General Mark W. Clark and small U. S. party land secretly by

submarine to confer with pro-Allied French forces in Algeria. 29 October Alaska Military Highway opened to traffic, built by Army Engineers. 8 November -11 November, Algeria-French Morocco Campaign (Ground). 12 November -13 May 1943, Algeria-French Morocco Campaign (Air). 17 November -13 May 1943, Tunisia Campaign (Ground). 2 January Buna Mission, New Guinea, captured. 10 January U. 8. troops begin final offensive to clear Guadalcanal. 14-23 January Anglo-American conference at Casablanca (SYMBOL). 22 January Papuan Campaign ends in first decisive defeat of Japanese in

World War II. 24 January -31 December 1944, New Guinea Campaign. 27 January Eighth Air Force makes first U. S. air attack on Germany, bombing

docks at Wilhelmshaven.
4 February Hq. NATOUSA established under command of Lt. Gen. Dwight D.

22 February -- 21 November 1944, Northern Solomons Campaign (Ground).
2 March

4 March, Battle of the Bismarck Sea.
28 March

II Corps opens drive in Tunisia toward Gabes.
6-7 May

Final assault launched in Tunisia Tunis and Bizerte overrun
7th. Enemy in II Corps zone surrender on 9th; all Axis forces on

13th, ending Tunisian Campaign.
12-25 May

TRIDENT Conference (Roosevelt, Churchill, and Combined Chiefs of

Staff) at Washington. 14 May

-17 May, Tunisia Campaign (Air). 30 June

Converging drive on Rabaul opens. 9 July

-17 August, Sicily Campaign (Ground). Main invasion forces land

on 10th; first use of amphibious truck (DUKW) in an assault. 22 July

Palermo surrenders to Seventh Army. 25 July

Pietro Fall of Mussolini proclaimed; replaced by Field Marshal

Badoglio. 1 August

Mass low-level assault on Rumanian oil refineries by AAF bombers. 5 August

Munda Alrfield, Solomon Islands, captured. 14-24 August QUADRANT Conference (Roosevelt, Churchill, and CCS) at Quebec. 17 August

Sicily Campaign ends as Allied troops enter Messina. 18 August

-21 January 1944, Sicily Campaign (Air). 25 August

Americans overrun New Georgia, Solomon Islands. 3 September Allied surrender terms for Italy accepted; become effective on

the 8th. 9 September -21 January 1944, Naples-Foggia Campaign (Ground). On 9 Sep

tember Allied forces under U. S. Fifth Army land in Italy. 1 October Allied troops enter port of Naples. 12 October Fifth Army troops begin assault crossing of Volturno River. 13 October Italy declares war on Germany, becomes cobelligerent of Allies. 19-30 October Conference between American, British, and Soviet foreign ministers

opens in Moscow. They agree to demand unconditional surrender

of Germany and to establish a world organization for peace. 5 November Fifth Army begins fruitless action against German-held Winter Line. 22-26 November SEXTANT Conference (Roosevelt, Churchill, Chiang Kai-Shek) at

28-30 November EUREKA Conference (Roosevelt, Churchill, Stalin) at Teheran.

7 December -16 April 1944, Northern Solomons Campaign (Air).
15 December -27 November 1944, Bismarck Archipelago Campaign.
24 December Roosevelt announces General Dwight D. Eisenhower as Supreme

Commander of the Allied Expeditionary Force to head Operation

1,300 planes of Eighth Air Force bomb German secret weapon targets.
26 December Main invasion of New Britain begins.
27-29 December Army takes over U. S. railroads to forestall a strike; control lapses

18 January 1944. 11 January Strategic air offensive against German aircraft industry and German

air force begins. 15 January Fifth Army successfully concludes operations against Winter Line

by capture of Mount Trocchio.
20-22 January U. 8. II Corps begins assault across Rapido River. Bridgehead aban-

doned on 22d with heavy casualties
22 January U. S. Fifth Army makes amphibious assault landing at Anzio.
22 January

-24 May, Anzio Campaign.
22 January -9 September, Rome-Arno Campaign
31 January -14 June, Eastern Mandates Campaign (Ground).
13 February Eisenhower assumes command as Supreme Allied Commander.
24 February In Burma, "Merrill's Marauders" begin expedition in

Valley: ultimate goal, capture of Myitkina airfield.
4 March

Eighth Air Force makes first attack on Berlin. 17 April

-2 September 1945, Bismarck Archipelago Campaign (Air). 11 May

Drive on Rome opens with heavy bombardment of Gustav Line. 4 June

Fith Army enters Rome.


6 June

--24 July. Normandy Campaign. Allied forces land on Normandy

coast on 6th, supported by air and naval bombardment. 11 June

VI Corps drives nearly 65 miles north of Rome. 15 June

B-29's based in China make their first attack on Japanese homeland. 15 June

-2 September 1945, Western Pacific Campaign (Ground). 17 June

VII Corps seals off' Cotentin Peninsula in France. 27 June

Cherbourg surrenders to VII Corps. 3 July

In France, First Army opens general offensive, “Battle of the Hedge

rows." Concluded by capture of St. LÔ on 18th. 19 July

Fifth Army captures Leghorn. 21 July

U. S. Forces land on Guam. 25 July

-14 September, Northern France Campaign. First Army launches

breakout assault from St. LÔ area. 1 August

12th Army Group becomes operational under General Omar Bradley. 3 August

Capture of Myitkina. 15 August

-14 September, Southern France Campaign opens with invasion of

southern France by Seventh Army. 20 August

U. S. and British forces close pincers on Germans in Falaise

Argentan pocket. 25 August

German forces surrender Paris to U. S. and French troops. 28 August

Germans surrender Toulon and Marseilles. 1 September

Fifth Army begins pursuit of enemy across Arno River. 2 September Elements of First Army enter Belgium. 3 September Seventh Army captures Lyons. 4 September Hq. Eighth Army arrives at Hollandia, New Guinea. 8 September Ninth Army launches all-out assault on Brest. 10 September -4 April 1945, North Apennines Campaign. 10 September Elements of First Army take Luxembourg. Third Army crosses

Mosolle below Metz.

Patrols of First Army are 11 September

the first Allied troops to cross into
12-16 September Second Quebec Conference (OCTAGON),
15 September

-21 March 1945, Rhineland Campaign.
U. 8. Forces begin landings on Morotal and the Palaus.

6th Army Group becomes operational.
17 September First Allied Airborne Army launches operation to secure axis of

advance toward Arnhem.
22 September First Army goes on defensive along most of its line.

2 October First Army begins assault on West Wall.
13 October Germans launch first V-bomb against Antwerp.
16 October

II Corps launches offensive toward Bologna.
17 October -1 July 1945, Leyte Campaign. On 20 October, Sixth Army invades

Leyte. 23-26 October Battle of Leyte Gull. 2 November Sixth Army completes clearing Leyte Valley. 9 November Third Army launches full-scale attack to take Metz. 16 November Ninth and First Armles open coordinated offensive to clear Roer

plains between the Wurm and the Roer. 21 November Ninth Army elements begin first phase of drive to Roer, Units of

First Army make limited progress through Huertgen Forest.
24 November B-29's begin attacks on Toyko irom bases in the Marianas.
28 November Port of Antwerp opened to tramc.
4 December Third Army elements cross Saar River.
5 December Seventh Army begins attack northward toward Maginot Line and

West Wall.
15 December -4 July 1945, Luzon Campaign.
16 December -25 January 1945, Ardennes-Alsace Campaign.

Germans open all-out counteroffensive in the Ardennes, taking
Americans by surprise and penetrating lines of First Army.
General Clark assumes command of Allied Armies in Italy. re-

designated 15th Army Group. 21 December Germans besiege Bastogne, now in Third Army area. 22 December Bastogne garrison refuses German demand for surrender. 26 December In First Army area, enemy drive is stopped short of the Meuse. 27 December Third Army raises siege of Bastogne. 30 December Elements of Third Army open drive on Houffelize. 3 January First Army begins counteroffensive from north to reduce Ardennes

salient. 9 January Sixth Army begins landing on shores of Lingayen Gulf, Luzon. 16 January First and Third Armies join at Houffelize. 29 January -15 July, Central Burma Campaign. 29-30 January Third Army launches attack on West Wall on 29th; First Army joins

in attack on 30th. 3 February

Sixth Army attacks Manila. 4-9 February

Conference at Yalta (ARGONAUT); United States, Great Britain,

Russia. 4 February First convoy on Ledo Road from Burma enters Kunming, China. 22 February

Third Army makes assault crossing of Saar River. 23 February First Army begins attack across Roer River. 25 February

Ninth Army Joins offensive, crossing Roer at Linnich.

Fith Army begins limited offensive in Italy. 27 February -4 July, Southern Philippines Campaign. 3 March

Sixth Army units overcome final resistance in Manila.
7 March

First Army takes Cologne.
Ludendorff Bridge at Remagen seized in surprise attack, and First
Army establishes bridgehead across Rhine.


18 March 20 March 22 March 23 March 26 March 1 April

5 April 11 April 12 April 14 April 20 April 21 April

24 April 25 April 29 April

30 April 5 May 7 May

8 May 25 May

5 June

15 June

16-17 June

22 June
11 July
16-24 July

6 August

8 August 14 August

Third Army takes Coblenz.
Seventh Army breaks through West Wall fortifications.
-11 May, Central Europe Oampaiga.
Third Army crosses Rhine.
-2 July, Ryukyus Campaign.
Tenth Army forces land on Okinawa.
First and Ninth Armles offect Junction near Lippstadt, encircling
Ruhr area.
-8 May, Po Valley Campaign.
Elements of Ninth Army reach Elbe south of Magdeburg.
President Roosevelt dies. Harry S. Truman sworn in as President.
Fifth Army in Italy opens inal offensive.
Seventh Army captures Nuremburg.
Fith Army drives into Bologna. On the 23d, Fifth Army units cross
Po River.
United Nations Conference opens at San Francisco.
Russian and American patrols contact on Elbe River; Germany is
split into two separate parts (and so remains).
German forces in Italy sign unconditional surrender at Caserta,
effective 2 May.
Seventh Army units clear Munich.

-2 September, China Offensive.
German High Command surrenders all land, sea, and air forces un-
conditionally to Allied forces, offeetive 9 May. All offensive opera-
tions are immediately halted.
President proclaims this day V-E Day (Victory in Europe).
Joint Chiefs of Staffs approve directive for Operation OLYMPIC
(invasion of Japanese home islands) scheduled for 1 November.
France, Great Britain, Russia, and the United States issue Berlin
Declaration, announcing their assumption of supreme authority in
occupied Germany.
Third and Seventh Armies designated for occupation duties in
6,000 Chicago truck drivers strike; 6,500 Army troops called to operate
trucks; 10,000 more called on 20 June.
Tenth Army completes capture of Okinawa.
SHAEF is dissolved.
Potsdam Conference (TERMINAL); United States, Great Britain,
and Russia.
Air Force drops atomic bomb on Hiroshima. first use of atomic
energy in war. A second bomb dropped on Nagasaki on 9 August.
Russia declares war on Japan
Japan accepts Allied unconditional surrender terms.
General of the Army Douglas MacArthur appointed Supreme Com-
mander, Allied Powers (SCAP).
Occupation of Japan by U. S. forces begins.
V-J Day. Victory over Japan. Formal terms of surrender signed by
Japanese envoys on board the U.S.S. Missouri anchored in Tokyo
Bay, Japan.
General Yamashita, Japanese commander in the Philippines, sur-
renders at Baguio to Lt. Gen. Jonathan M. Wainwright.
U.S. fag is raised again on Wake Island after the surrender of
approximately 1,200 Japanese stationed there.
American troops formally occupy Tokyo and raise flag on U.S.
U.S. forces enter Korea and are designated U.S. Army Forces in
Korea (USAFIK).
General Headquarters, SCAP, established Tokyo.
National War College established.
Atomic bomb tests held at Bikini Atoll in the Pacific.
Armed Forces Staff College established.
Hostilities in World War II declared terminated by Presidential
Far East Command established as unified command at Tokyo.
U.S. Forces, European Theater, redesignated the European Command.
Women's Medical Specialist Corps established.
U.S. Senate approves ratification of peace treaties with Italy, Ru-
mania, Bulgaria, and Hungary.
The National Security Act of 1947 provides for: (1) National Military
Establishment; (2) Secretary of Defense; (3) Military Departments
of Army, Navy, and Air Force; (4) National Security Council, Central
Intelligence Agency, National Security Resources Board; (5) separa-
tion of Air Force from Army; (6) Joint Chiefs of Staff; (7) various
boards; and (8) coordination with other executive agencies.
Medical Service Corps established.
Last American occupation troops leave Italy.
A Soviet blockade of the Western sectors of Berlin begins. Termi-
nated 12 May 1949.
-9 July, Army takes over railroads to prevent a nationwide strike.
The Women's Army Corps, U.S. Army, established.
The Berlin Airlift put into operation. Airlift ends 30 September 1949.
Republic of Korea (South Korea) founded.
People's Democratic Republic of Korea founded under Communist
rule in North Korea.

30 August
2 September

3 September 4 September 8 September


2 October
1 July

13 August
31 December


1 January
15 March
16 April
14 June

26 July

4 August 14 December 31 March


10 May
12 June
25 June
15 August
9 September

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