3 of the most famous military engagements include World War 1, World War 2 and the American Civil War

World War II, by a large margin. World War I saw about 8,500,000 military deaths. By contrast World War II produced between 20,000,000 and 30,000,000 military deaths, along with another 20,000,000 or so civilian deaths. Michael Montagne World War II, by about a factor of ten. Michael Montagne

Trevor Nevitt Dupuy has written:

'The Military history of world war II' -- subject(s): Accessible book

'The Military history of world war II' -- subject(s): Accessible book

'The military history of World War II' -- subject(s): Protected DAISY

'Triumphs and Tragedies in the East, 1915-17'

'The military history of World War II' -- subject(s): Protected DAISY

The cold war was the state of political and military tension after World War II.

A person may buy military memorabilia from World War II online from websites such as Etsy and eBay. Other websites such as GunBroker and Ruby Lane also sell military memorabilia from World War II.