"Abizaid asked the Joint Chiefs of Staff for the equivalent of two brigades, or 7,000 to 10,000 troops - "if not more." The request came less than a week after military officials began extending the one-year tours of an unspecified number of the roughly 20,000 troops who were preparing to leave Iraq. U.S. officials had hoped to draw down the troop number to 110,000 this spring as the coalition prepares to hand over authority to a still-unnamed interim Iraqi government on June 30. Instead, the Pentagon now is planning to have as many as 140,000 American troops in Iraq if the new units arrive soon, or 120,000 if the soldiers now pulling extended duties are allowed to leave in a few months, defense officials said.