The United States only accounted for about 8% of all the casualties in World War One. The primary factor that contributed to that small percentage was the their late involvement with the war. The US declared war against Germany on April 6, 1917 (which was three years after the war started in Europe) and then it all ended a little over one year later with the armistice on November 11, 1918. So the United States was only in the war for about one-fourth the time everyone else was. In addition, the US had a little thing called the Atlantic Ocean separating themselves from the front in Europe, so the amount of troops they could send at once was limited to the amount of vessels that could carry them. This factor was not as prevalent as their late involvement, however.
The United States did not join the fight against the axis powers (Germany, Japan and Italy) until December 1941, although the USA did provide support in other ways. By 1941 many hundreds of thousands of Britains, Russians, French, Polish, Canadians and others had already died in the conflict. The United States officially joined after the bombing of its naval base at Pearl, Oahu by the Japanese on December 7, 1941.
The United States made a great contribution to the Second World War, but suffered fewer casualties due to having joined the conflict nearly three years in.
No fighting occurred in the US where most of the civilians stayed.
Poorly trained soldiers
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405,400 US casualties are recorded for World War 2
1,700 US Civilians were killed during World War 2.
The Federals suffered 42,000 casualties, the Confederate 28,000.
One source lists 18 US casualties during the Bosnian campaign.
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During World War 2 the total casualty lost by the British were about 455,000.
405,400 US casualties are recorded for World War 2
1,700 US Civilians were killed during World War 2.
During World War 2 the total casualty lost by the French were about 570,000.
During World War 2 the total casualty lost by Iraq were only about 500.
The Federals suffered 42,000 casualties, the Confederate 28,000.
During World War 2, the Allied forces saw over 61 million casualties counting military and civilian. The Axis forces saw over 12 million casualties.
One source lists 18 US casualties during the Bosnian campaign.
It is known that the Russian side lost 60,000 troops in the Kerensky (or July) Offensive of World War I. The total number of casualties for the Austro-Hungarian and German side is unknown.
23000 casualties
During World War 2 the total casualty lost by the US were about 418,000.