Damascus, August 17 (Xinhua) a government military checkpoint in hassek Province, northern Syria, was attacked by U.S. air strikes on August 17, killing one soldier and injuring two others, according to the Syrian news agency. < / P > < p > it was reported that a U.S. fighter plane launched an air strike on a government checkpoint in the southeast city of kamishli in hassek province that morning because soldiers at the checkpoint banned the passage of US military patrols. The U.S. military has several military bases in the Kurdish armed control area in Northeast Syria, and supplies and weapons are transported from Iraq to Syria. Prior to this, the US military transport or patrol convoy had repeatedly clashed with the local garrison and the people and caused casualties when passing through the Syrian government controlled area. < p > < p > in August 2014, the United States began to carry out air strikes on the targets of the Islamic state, an extremist organization in Iraq, and in September of that year, the scope of the air strikes was extended to Syria. In the same month, the United States launched the formation of an international alliance against the Islamic state. The Syrian government accused the United States led International League of “illegal occupation” of Syrian territory, saying that its air raid led to a large number of Syrian civilian casualties.