Today in WW II: 7 Dec 1941 Japanese attack US Navy at Pearl Harbor, Hawaii, sinking or severely damaging 18 ships: 8 battleships, 3 light cruisers, and 3 destroyers .  More 
7 Dec 1941 Japanese declare war on Britain and United States.
7 Dec 1941 In North Africa, the Afrika Korps fell back to El Agheila, halting their retreat and the British Operation Crusader advance there.
7 Dec 1944 US Army units land at Ormoc Bay, Leyte, Philippine Islands cutting off the Japanese ability to reinforce and supply Leyte.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

Chart of Military Vehicle Trailers with 1/4-ton Capacity

USAF combat controller, TSGT Ernest C. Gomez of the 1300th Military Airlift Squadron, stands by an M151A1 jeep and M416 trailer as he monitors a parachute drop made by members of the US Army 193rd Infantry Brigade during an airborne training mission at Venado Drop Zone, Howard AFB, Panama, May 1977
USAF combat controller, TSGT Ernest C. Gomez of the 1300th Military Airlift Squadron, stands by an M151A1 jeep and M416 trailer as he monitors a parachute drop made by members of the US Army 193rd Infantry Brigade during an airborne training mission at Venado Drop Zone, Howard AFB, Panama, May 1977.

Military trailers with 1/4-ton capacity are designed to be used with the Truck, 1/4-ton 4x4, best known as the jeep. Since the original jeep development in 1940, each model of jeep had a 1/4-ton trailer designated to be used with the vehicle for additional cargo space or more specialized uses. Wheels and tires were the same on the jeep and the trailer, providing more capability to recover from a flat tire or damaged wheel.

Vehicle Description Photo Link
MB-T
T3
MB-T (Willys) and T3 (Bantam) Trailer, 1/4 ton for WW II jeeps (G-529) MB-T (Willys) and T3 (Bantam) Trailer, 1/4 ton for WW II jeeps (G-529)
K-38 Trailer, Telephone Cable Splicer, 1/4 ton, Single Axle, K-38 Trailer, Telephone Cable Splicer, 1/4 ton, Single Axle, K-38
M-100 Trailer, 1/4 ton (G747). Used with M38, M38A1 jeeps. M-100 Trailer, 1/4 ton. Used with jeeps from WW II into 1970s.
M-367 Trailer, Maintenance: Telephone Cable Splicer, 1/4 ton (G747). M100 varaint for Signal Corps, with tool chests. See Trailers, Miscellaneous  
M-416 Trailer, 1/4 ton (G857). Used with M-151 jeep, CUCV and HMMWV. M-416 Trailer, 1/4 ton. Used with M-151 jeep, CUCV and HMMWV
M-716 Trailer, Maintenance: Telephone Cable Splicere, 1/4 ton (G857). M416 varaint for Signal Corps, with tool chests.