TIMELINE
  |
 |
 |
  |
 |
 |
Select a year above to navigate through the timeline.
January 24, 1944
The Battle of Cassino begins. It takes four major assaults and four months to take Cassino. The 100th Infantry Battalion fights in the first two assaults.
March 1944
MISers translate Japanese Z-Plan, the Japanese Imperial Navy’s defense strategy for the Marianas, Guam, Saipan and Tinian.
March 26, 1944
100th Infantry Battalion lands at Anzio, the second front between the Gustav Line and Rome. The 100th Infantry Battalion is assigned a section in the Anzio beachhead in April.
The 1399th Engineering Construction Battalion is formed to work on non-combat construction and maintenance projects in the Hawaiian Islands.
Saipan and Tinian invasion.
MIS joins Joint Intelligence Center of Pacific Ocean under command of Admiral Nimitz. MIS joins Office of War Information (under State Department) in the China-Burma-India Theater.
MIS interpreters in the Pacific.
May 1, 1944
442nd RCT ships out of Hampton Roads, Virginia, Port of Embarkation to Europe.
June 1944
MISers participate in the invasion of Saipan.
June - August 1944
Nisei MISers participate in Marianas Campaign.
June 2, 1944
The 100th participates in the breakout to Rome by attacking and capturing Lanuvio.
The 442nd RCT arrives at Naples harbor and on June 10th meets the 100th Infantry Battalion in Civitavecchia, northwest of Rome.
June 5, 1944
Rome falls.
June 26, 1944
The 442nd RCT is assigned to the Fifth Army and in turn is attached to the 34th Division. The battle-tested 100th Infantry Battalion is attached to the 442nd RCT and the 442nd goes into combat near Belvedere, Italy.
July 1944
Five Nisei MISers are part of the “Dixie Mission,” sent to Yenan, the wartime headquarters of the Chinese Communists, to gather military intelligence information.
July 7, 1944
442nd RCT takes Hill 140 in Italy after a bitter battle.
100th Infantry Battalion occupies and controls Leghorn directly under the control of the Fifth Army in Rome.
Nisei soldiers of the 100th Infantry Battalion in Leghom, Italy.
July 27, 1944
General Mark Clark presents the Distinguished Presidential Unit Citation to the 100th Infantry Battalion at Vada, Italy for action at Belvedere.
Merrill’s Marauders captures Myitkyina, the vital junction for opening the Burma Road into China.
General Clark presenting the Distinguished Presidential Unit Citation to the 100th Infantry Battalion.
Kenji Yasui and Karl Yoneda with the Office of War Information psychological warfare team in Burma.
Nisei are in the Marshall Islands campaign.
August 1944
MISLS is expanded and moved from Camp Savage to Fort Snelling, Minnesota.
August 1 - September 14, 1944
Antitank (AT) Co. is detached from 100/442 RCT and attached to the 1st Airborne Task Force with the 517th Parachute RCT. AT completes 12 days of tactical glider training near Rome. August 15, 1944, they participate in the D-Day Invasion of Southern France. At 15:30 hours, 44 AT gliders, C-47 in tow, land in Le Muy, France. Rejoins the 100/442 RCT on October 11, 1944 in Bruyeres. Awarded the Southern France Campaign Glider Badge with Assault Star and Bronze Arrowhead.
August 14, 1944
The 100th Infantry Battalion is formally made an integral part of the 442nd RCT.
August 31, 1944
442nd RCT minus the 100th reaches the Arno River in Italy near Florence. 100th Infantry Battalion spearheads the crossing of the Arno River and the capture of Pisa for the IVth Corps.
September 26, 1944
442nd RCT leaves Naples for France.
100th/442nd RCT is attached to the 36th Division (AKA the Texas Division) of the Seventh Army.
100th/442nd RCT is attached to the 36th Division (a.k.a. the Texas Division).
October 1944
MIS participates in the Philippines Invasion.
October 15, 1944
The 100th/442nd RCT enters the battle of Bruyeres in the Vosges Mountains.
At Bruyeres, after three days of fighting, the 100th Infantry Battalion takes Hill A, the key to Bruyeres, the 2nd Battalion takes Hill B, and enters the town.
Japanese American Infantrymen move past knocked out Nazi half track on the road near Bryueres, France.
October 20, 1944
100th Infantry Battalion captures Hill C.
October 22, 1944
100th Infantry Battalion takes Biffontaine, suffering many casualties attempting to hold Biffontaine.
100th/442nd RCT rescues the “Lost Battalion,” which was cut off and surrounded by the enemy.
Japanese American Infantryman rescuing the "Lost Battalion."
