Today in WW II: 23 Feb 1942 Japanese submarine I-17 attacks a coastal oil refinery at Santa Barbara, CA. 17 high-explosive shells cause insignificant damage.  More 
23 Feb 1944 US forces achieve victory in the Battle of Eniwetok Atoll, in the Pacific Marshall Islands.
23 Feb 1945 US Marines from 28th Marines, 5th Marine Division captured the summit of Mt. Suribachi on Iwo Jima, after days of intense fighting. Without realizing its significance, Associated Press photographer Joe Rosenthal snapped the world famous Iwo Jima flag photo.
23 Feb 1945 Allied Forces cross the Roer River [Operation Grenade].
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

Pre-World War II 5-ton Mack Trucks

Mack EHT Scan: Courtesy of Richard Notton from Bart Vanderveen's Observer's Fighting Vehicle Directory, WW II
Scan: Courtesy of Richard Notton from Bart Vanderveen's "Observer's Fighting Vehicle Directory, WW II."

Mack EHU Scan: Courtesy of Richard Notton from Bart Vanderveen's Observer's Fighting Vehicle Directory, WW II
Scan: Courtesy of Richard Notton from Bart Vanderveen's "Observer's Fighting Vehicle Directory, WW II."