arms export; weapons export
Refers to the export of military weapons and equipment. Often used in political, economic, and legal contexts.
The Japanese government tightened regulations on arms exports.
Arms exports affect international security.
武器輸出 is a near-synonym also meaning 'weapons export'. 兵器輸出 tends to sound slightly more formal or military, while 武器輸出 is more common in everyday news.
Compound of 兵器 (weapons, arms) and 輸出 (export).