The history of how the the German self-propelled anti-aircraft gun Sd.Kfz. 10/4 was created
The Hotchkiss 25-mm gun was the main anti-tank weapon of the French army in 1939–1940
Total global military expenditure increased by 0.7 percent in real terms in 2021
The hypersonic missile was launched successfully from a B-52H bomber off the west coast of the U.S.