Italy’s defense minister has claimed the U.K. is not doing enough to share its cutting-edge technology with its partners on the tri-nation GCAP fighter program and called the alleged British secrecy “madness.”

Guido Crosetto warned that as long at the U.K. refrained from sharing top tech with its Italian and Japanese partners on the sixth-generation jet program it risked benefiting adversaries around the world.

Crosetto’s accusation was the second time he has singled out the U.K. for holding back on GCAP tech-sharing.

In April 2025 he told Reuters the U.K. needed to bring down the “barriers of selfishness.”

He said at the time, “Italy has broken them down totally, Japan almost totally. It seems to me that the U.K. is much more reluctant to do this, and that’s a mistake because selfishness is the worst enemy of nations.”