Of note: You’d think they would brief US military pilots if they were government craft.
It appears there’s quite a few of them and you’d want to avoid a mistaken shooting.
My cousin is a retired F-16 pilot. Did many combat sorties in Iraq and was active military from 2002-2012. I asked him this exact question the other day... he said he was never briefed on UAPs nor did he ever see anything he couldn’t explain.