(CNN) — The US Air Force chief of staff, Gen. David Allvin, abruptly announced Monday that he will retire halfway through his four-year term. The move came after Allvin learned that Defense Secretary Pete Hegseth planned to push him out of the job, according to a source familiar with the decision.

The move marks yet another early ouster of a senior military officer under Hegseth and President Donald Trump.

The Air Force issued a statement Monday disclosing Allvin’s plans to retire in November but provided no explanation as to why he is leaving just two years into his term.

“I’m grateful for the opportunity to serve as the 23rd Air Force Chief of Staff and I’m thankful for Secretary Meink, Secretary Hegseth and President Trump’s faith in me to lead our service,” Allvin said in a sta

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