Munitions

ARMS

Think of what a country might stockpile for defense, often regulated by treaties—short for the tools of warfare.

Munitions" is a straightforward clue where the answer is a simple synonym. The word refers to weapons or military supplies, and "arms" is a common term for the same thing—think of guns, artillery, or other combat equipment. No wordplay here; it’s a direct definition, so the answer fits neatly as a shorter, more general word for the clue.