World's 5 most expensive military aircraft in history

The article highlights the five most expensive military aircraft in history, emphasizing their advanced technology, strategic importance, and staggering costs driven by research, development, and specialized infrastructure. Leading the list is the Northrop B-2 Spirit, with a total program cost of approximately $44.75 billion for 21 bombers, averaging about $2 billion per unit when including R&D and sustainment. Known for its stealth capabilities, the B-2 has been active in multiple conflicts and remains in service until its planned retirement around 2032, to be succeeded by the B-21 Raider. Next is the VC-25B, the next-generation Air Force One, costing around $2 to $2.5 billion per aircraft before operating expenses. These aircraft serve as flying command centers for the U.S. president, equipped with EMP shielding, secure communications, and self-defense systems. The program has faced delays, with delivery expected between 2027 and 2029. The B-21 Raider, still