Defense officials from Thailand and Cambodia agreed to meet on Wednesday to revive a collapsed ceasefire as deadly border fighting enter a third week. The two neigboring countries previously clashed in July. The violence ended with a ceasefire brokered by Malaysia, China and the United States, but the accord unraveled in early December after two Thai soldiers were wounded in a skirmish. Since then, Thailand has launched airstrikes, while Cambodia has fired rockets in fighting along the 817-kilometer border, killing at least 80 people.