Around 16 Million US troops were deployed during World War 2.
Throughout the war the number of American Troops continued to grow in response to the position of the war. By August 1918, there were nearly 1,500,000 American troops in the European Campaign.
1,300,000
The American troups were called doughboys in World War I.
What sort of 'what' are you asking about? There were many in Europe at that time.
12 million
DOughboys
250000
1,300,000 or 1.3 million
Many of the troops who supported North Korea were Chinese, while many of the troops who fought for South Korea were American.
west of france
40000 American troops died roughly and about 10000 British troops died in the war
Approximately 2.5 million to 2.75 million Union troops served in the American Civil War.