Thailand and Cambodia have organized border visits for foreign diplomats to observe the damage from recent clashes

Cambodia called on Thailand Thursday to return 20 soldiers it said were taken captive hours after a ceasefire to halt the neighbours' bloodiest border clashes in decades. The two countries agreed a truce on Tuesday following five days of clashes that killed at least 43 people on both sides -- the latest eruption of a long-standing dispute over contested border temples on their 800-kilometre (500-mile) frontier.