Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : Used by the U.S. Army, the U.S. Marine Corps, as well as many foreign militaries, the M47 Dragon was first fielded in January 1975 to U.S. Army soldiers stationed in mainland Europe. 
Question : What year did M47 Dragon come into use?
[A]: 1975


[Q]: Context : Brigadier-General Edward Murray Colston, 2nd Baron Roundway, CMG, DSO, MVO (1880--1944), was a British Army officer in the 2nd Boer War and World War I. 
Question : To which branch did Edward Murray Colston, 2nd Baron Roundway belong?
[A]: British Army


[Q]: Context : Ray L. Smith is a retired United States Marine Corps major general. 
Question : What armed force was Ray L. Smith in?
[A]:
United States Marine Corps