In the statement "Men and women can join the army in the US." is "army" capitalized?

Question

Or is it just capitalized when it is part of the formal title: the US Army....the US Navy

Answer 1

Military branches. "the U.S. Army; the Army" in references to the U.S. Army); "U.S. Navy; the Navy" (in references to the U.S. Navy); "armies in conflict; nineteenth-century naval battles."

Your sentence should read:

"Men and women can join the Army in the U.S."

Answer 2

no, because you aren't explicitly saying the US Army.