National Route 13 is a highway in southern Vietnam stretching from the northeastern outskirts of Ho Chi Minh City, the commercial centre and most populous region of the country, towards the border to Cambodia. The highway starts around Thủ Đức on the northern outskirts of Ho Chi Minh City, once the site of the military academy of the Army of the Republic of Vietnam, and travels north through the provinces of Bình Dương and Bình Phước. The highway passes through the provincial cities of Thuận An, Thủ Dầu Một; towns of Bến Cát, Chơn Thành, Bình Long; and districts of Đồng Phú, Hớn Quản, Lộc Ninh. During the Vietnam War the road was nicknamed Thunder Road by US forces.