One of the most prominent super political action committees backing Hillary Clinton released a new Youtube ad arguing Donald Trump would fail as a leader of the military.

“I know the sacrifices our military makes,” retired Maj. Gen. Paul D. Eaton says in the Priorites USA ad, titled “For America.” “For thirty years I served everywhere from Iraq to Somalia, where I’ve been responsible for the lives of our sons and daughters. For all of them and our country I cannot support Donald Trump.”