US planning to spend some $15Bln on B-52 bombers upgrade
![US planning to spend some $15Bln on B-52 bombers upgrade](https://media.mehrnews.com/d/2024/08/06/4/5110783.jpg)
TEHRAN, Aug. 06 (MNA) – The United States Air Force is planning to upgrade its 1960s B-53 Stratofortress bombers at a cost of at least $15 billion, the Defense One news portal reported on Tuesday, citing service officials.