People on both sides of the border share a cultural heritage much older than modern nation-states, dating back to the ancient Khmer civilization.

The conflict along the border is the deadliest between the two nations in 14 years.

The deadliest conflict between the two nations in 14 years, now in its third day, extended to provinces about 200 miles south of where clashes first began.

People on both sides of the border share a cultural heritage much older than modern nation-states, dating back to the ancient Khmer civilization.

Intense nationalism and disputed history — and maps — stoke the neighbors’ hostilities. Even a surge of international diplomacy has brought little hope of a lasting peace.