In 1937, French scholars began to restore the temples at Mỹ Sơn. In 1937 and 1938, the main temple known as "A1" and the smaller temples surrounding it were restored. Other major temples were restored between 1939 and 1943. However, many historical buildings were destroyed during the Vietnam War. The temples were part of a People's Army of Vietnam and Viet Cong base area and consequently United States aircraft bombed the region in August 1969. The surrounding area is still rendered dangerous through the presence of unexploded land mines.