SeoulThe 1953 armistice has never become a treaty.

28,500 US troops and the peninsula’s security order rest on that document.

A treaty requires agreeing who the parties are, and the two Koreas, the US and China never have.

North Korea has rejected outreach so far, and 11-day US-South Korean drills begin Monday.

Sources: The Guardian, The Times of India, 경향신문, The Straits Times, South China Morning Post