Gov. Chris Christie wants the leader of New Jersey's National Guard to shape up.

The governor has given Air Force Brig. Gen. Michael Cunniff 90 days to slim down and meet his obligations.

The action comes after Christie's staff told The Washington Post (http://wapo.st/1V6jBh9 ) the governor was unaware the general had been reprimanded by the Pentagon about his weight and repeatedly dodging physical-fitness tests.

In an emailed statement, Christie spokesman Kevin Roberts told The Post the governor found the general's actions "unacceptable and disappointing."

Cunniff declined an interview request. But the National Guard released a statement in which the general acknowledged he failed to meet the fitness requirements and is "taking the necessary steps to remedy this issue."

Christie underwent stomach banding surgery in 2013.