Summary: Weekly report of U.S. military deaths in Operation Iraqi Freedom and Operation Enduring Freedom (Afghanistan), compiled from U.S. Department of Defense News Releases. … Afghanistan: Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, told the Senate Armed Services Committee that a proper effort to counter the Taliban insurgency correctly “probably means more forces.” … Iraq: Four mortar shells landed in the Green Zone as Vice President Joe Biden arrived in Iraq on a previously unannounced mission to help the country resolve its differences ahead of America’s military withdrawal. … One-year retrospective: One year ago today, on the sixth day after losing his 2008 primary challenge against U.S. Rep. Michele Bachmann in Minnesota’s 6th Congressional District, Aubrey Immelman, in line with his focus on national security, reported on a mass-casualty car bombing in Iraq and announced three upcoming events at St. John’s University in Collegeville, Minn., with a focus on foreign policy and international affairs.