USA
The US and Japan .
The term "Nagasaki war" is not commonly used; however, if you are referring to the events surrounding the atomic bombing of Nagasaki during World War II, the primary countries involved were the United States and Japan. The U.S. dropped an atomic bomb on Nagasaki on August 9, 1945, following the bombing of Hiroshima three days earlier, which contributed to Japan's eventual surrender and the end of the war.
No other countries did.
The allies did not participate in the bombing of Nagasaki. President Truman took all the responsible.
Japan
Enola gay, Bockscar and 4 B-29 planes which names are not in the records.
The U.S.A won the war after dropping the bomb on Nagasaki.
It was August 8th, 1945
See: Atomic bombing of Hiroshima and Nagasaki
Nagasaki was devastated. The damage reached over 12 miles.
August 6 1945 was Hiroshima and the 9th was Nagasaki.
Tinian Island.