
A U.S. Army helicopter prepares to leave a forward operating base in Afghanistan. Republican lawmakers say there are not enough troops to man a counter-rocket, -artillery and -mortar battery used effectively by soldiers in Iraq to intercept enemy rounds headed for forward operating bases. (Associated Press)

'CONCERNED': Rep. John Kline, Minnesota Republican, says he is worried about not having enough troops in Afghanistan to "provide defensive protection." He faults President Obama's troops cap. (Associated Press)

A Pakistani child bicycles past a parked truck carrying supplies for NATO forces in Peshawar, Pakistan, on Saturday, Oct. 2, 2010. Some 150 trucks were still waiting for Pakistan to reopen the border crossing at Torkham so they could deliver their supplies to Western troops in Afghanistan. (AP Photo/Mohammad Sajjad)

Australian Prime Minister Julia Gillard is welcomed by Afghan President Hamid Karzai during their first official meeting at the presidential palace in Kabul, Afghanistan, on Saturday, Oct. 2, 2010. Ms. Gillard pledged to continue supporting the U.S.-led mission there in her first overseas trip as Australia's leader. (AP Photo/Australian Department of Defense, Raymond Vance)

A Pakistani border guard stands near Afghanistan-bound NATO trucks parked on the roadside in Pakistani tribal area of Khyber on Friday, Oct. 1, 2010. Pakistan closed the Khyber Pass supply route for U.S. and NATO troops in Afghanistan on Thursday after a coalition helicopter attack mistakenly killed three Pakistani soldiers at a border post, raising tensions in a vital relationship for both Islamabad and Washington. (AP Photo/Qazi Rauf)

Pakistani policeman keeps watch on the still smoldering oil trucks in Shikarpur, southern Pakistan, on Friday Oct. 1, 2010. Suspected militants set ablaze at least 27 tankers carrying fuel for U.S. and NATO troops in Afghanistan on Friday, police said. (AP Photo/Aaron Favila)

Pakistani policeman keeps watch on the still smoldering oil trucks in Shikarpur, southern Pakistan on Friday Oct. 1, 2010. Suspected militants set ablaze at least 27 tankers carrying fuel for U.S. and NATO troops in Afghanistan on Friday, police said. (AP Photo/Aaron Favila)

Pakistani police officer stands guard on still smoldering oil trucks in Shikarpur, southern Pakistan on Friday Oct. 1, 2010. Suspected militants set ablaze at least 27 tankers carrying fuel for U.S. and NATO troops in Afghanistan on Friday, police said. (AP Photo/Aaron Favila)

A Pakistani border guard stands alert as NATO trucks carry fuel, proceed to neighboring Afghanistan at Pakistani border post Chaman on Friday, Oct. 1, 2010. Pakistan closed the Khyber Pass supply route in northwest for U.S. and NATO troops in Afghanistan after a coalition helicopter attack mistakenly killed three Pakistani soldiers at a border post, raising tensions in a vital relationship for both Islamabad and Washington. (AP Photo/Shah Khalid)