Hello:
I'm not clear whether you are interested in post-WWII friendly fire incidents, or if you might want to know the details surrounding a bizarre occurrence early in the Korean War, in which a US B-26 Invader attack bomber was nearly shot down (knowingly and intentionally) by a US F-82 (twin-Mustang) whose pilot for some reason suspected the B-26 of being flown by a North Korean spy.