Key notes of the Minister of Defense H.E. prof. Todor Tagarev “Security challenges and main modernization projects in collective defence environment” Presented by Brig.Gen. Radostin ILIEV, Advisor to the Minister of Defense Key notes by Hristo Gadjev, Chairman of Parlamentary Committee on Defense Key notes by Bozhidar Bozhanov, Chairman of Parlamentary Committee on Electronic Government and Information Technologies