Mullen says Kandahar campaign will take months

WASHINGTON -- The chairman of the Joint Chiefs of Staff is predicting that it'll be clear by year's end whether a NATO-led counterinsurgency effort in the Afghan Taliban stronghold of Kandahar is successful.

Adm. Mike Mullen says the Kandahar campaign, which is planned to go forward next month, is vital to turning around the war. He says the southern Afghanistan city is as important to the overall war effort as Baghdad was to the U.S. troop increase in Iraq in 2007.

Mullen says improving security in Kandahar will be important. But he says the key will be improving governance in the city. That's a reference to the importance of the Afghan government playing a lead role in providing basic services in the area.

Mullen appeared on CNN's "State of the Union."