ABUJA, Nigeria (AP) — Nigeria's president has appointed new leaders for the nation's military and security services.

The move cements President Goodluck Jonathan's control over powerful institutions in the run-up to next year's election.

On Wednesday, Jonathan's office said he had replaced the leaders of the country's Air Force, Army and Navy. He also replaced the heads of the federal Nigeria Police Force and the State Security Service, the country's secret police.

The National Assembly must approve the new military leaders before they can take over.

Nigeria will hold its presidential election on Jan. 22, 2011. Jonathan, who became president after the May death of elected leader Umaru Yar'Adua, has yet to say whether he'll run.