Does the Army respond with "Aye, sir" to a command, or is that only for Marines and Navy? If not, what would their response be to a command?

Navy and Marines

Thats just navy

Just Marines and Navy. Army would probably say yes sir or no sir. Aye aye sir or Ma'am means I will comply.

In the marine corps it’s aye aye sir, although many get lazy and don’t say the second aye.

Hello Kitty! Lol

"Aye" is NOT the correct response to a command. A single "Aye" means "That is correct."

"Aye, aye sir/mam" is the correct response to a command and means "I understand and I will comply."