In the morning of 26th December 2012, at the National Library of Viet Nam (NLV), the exhibition “Dien Bien Phu in the air victory through the materials at home and abroad” has opened. Exhibition presents more than 600 documents including books, newspapers, press clippings, pictures which are variety in types and content of the 12 days and nights of the Hanoi People's Army against the bombing of the U.S Air Force bombardment. Exhibition “Dien Bien Phu in the air victory through materials at home and abroad” enables readers and public to have deeper and comprehensive understanding of the great victory of the Army and People in Hanoi in particular and the nation in general.