12 days and nights at the end of December 1972 (from the 18th to the 30th day) the entire army, Vietnam people made extraordinary efforts, fought bravely and great wisdom, formed a strategic battle in the sky of Hanoi . The overarching fundamental cause of this great victory is the ingenious leadership of President Ho Chi Minh and the Politburo of the Party Central Committee, the right and timely direction of the Central Military Commission and the Ministry of National Affairs. room, the General Staff Department, the fighting power and the very high work of the Air Defense - Air Force, the other Army Corps, of the Military Region, the Army, of the Party Committees of Hanoi and Hai Phong and other provinces, especially the smart brave fighting of officers and soldiers directly facing enemy air forces
The great effective help of the Soviet Union and international friends.