A Mi-17 military transportation helicopter crashed on Monday evening near Krumovo air force base close to Plovdiv in central Bulgaria, killing both pilots, Captain Plamen Panteleev, 48, and Captain Stoyan Nedelchev, 45.
A third person on board, engineering officer Alexei Kamenov, survived the crash and was severely injured, but managed to crawl out of the wreck.
Bulgaria's Ministry of Defence will submit its proposals to procure new fighter jets and armored vehicles to the Council of Ministers this March, according to Defence Minister Krasimir Karakachanov.
The minister told public broadcaster BNT that Bulgaria will seek offers "for new and secondhand aircraft" to "find the best prices and the best options."
Bulgaria's nationalist VMRO-BND party has joined the dispute between Macedonia and Greece over Macedonia's name, accusing Greece of trying to "usurp" the term Macedonia exclusively.
The party led by Defence Minister Krasimir Karakachanov confirmed its statement published on Sunday on its website was official.