''Under
NATO nuclear weapons sharing, the United States has provided nuclear weapons for Belgium,
Germany, Italy, the
Netherlands, and Turkey to deploy and store.
This involves pilots and other staff of the "non-nuclear" NATO states practicing, handling, and delivering the U.S. nuclear bombs, and adapting non-U.S. warplanes to deliver .US. nuclear bombs. U.S. nuclear weapons were also deployed in
Canada until 1984, and in Greece until 2001 for nuclear sharing purposes.''
By your definition all five are nuclear powers.They can practice and handle weapons,and modify planes for emergency use,But usa retains control over them.