"He is only continuing the war that was started by his predecessor." Wait...what?
When the US responds militarily the Taliban's supporting, enabling, and protecting Osama bin Laden and al Qaeda AFTER the 9/11 attacks, this is defined as George Bush "starting a war"?
Saddam Hussein invades Kuwait in 1990, loses to a US-led military liberation of Kuwait and invasion of Iraq, then spends the next 12 years not complying with UN disarmament resolutions, killing thousands of Iraqis who oppose him, sending money to suicide terrorists, sheltering international terrorists like Abu Nidal, and violating no-fly zones AFTER 9/11, thus prompting another US-led military liberation and invasion of Iraq, this is defined as George Bush "starting a war"?
Both of those wars could have been avoided if the Taliban and Saddam Hussein would simply have complied with UN resolutions (to turn over bin Laden and to verifiably disarm, respectively). The war in Afghanistan was started by the Taliban and al Qaeda, and the war in Iraq was started by Saddam Hussein.