U.S military officials in Iraq says they have secured 75 percent of Baghdad.

USA Today reports it is a dramatic increase from a year ago, when only eight percent of the city was secure.

The fight to control Baghdad had been the centerpiece of President Bush's troop surge.

But military commanders believe the gains are fragile.

Many of the secure neighborhoods still depend on a presence of Iraqi and U.S. forces to maintain the peace.

Iraq's government has been slow to restore basic services like electricity and water in some areas.