BAGHDAD _ The U.S. military has warned Iraq that it will shut down military operations and other vital services throughout the country on Jan. 1 if the Iraqi government doesn't agree to a new agreement on the status of U.S. forces or a renewed United Nations mandate for the American mission in Iraq.

Many Iraqi politicians view the move as akin to political blackmail, a top Iraqi official told McClatchy Sunday.

In addition to halting all military actions, U.S. forces would cease activities that support Iraq's economy, educational sector and other areas _ "everything" _ said Tariq al Hashimi, the country's Sunni Muslim vice president. "I didn't know the Americans are rendering such wide-scale services."

Hashimi said that Army Gen. Ray Odierno, the top U.S. military commander in Iraq, listed "tens" of areas of potential cutoffs in a three-page letter, and he said the implied threat caught Iraqi leaders by surprise.

"It was really shocking for us," he said. "Many people are looking to this attitude as a matter of blackmailing."