The U.S. Senate has unanimously confirmed Lt. Gen. David Petraeus to become the new commander of U.S. forces in Iraq. The vote was 81 to zero. Petraeus replaces Army Gen. George Casey, who was removed from his post after he opposed the president’s plan to escalate the war. Casey had said the addition of troops in Iraq could delay “the development of Iraqi security forces and increase anger at the United States in the Arab world.”