World

US, NATO will hold ceremony to mark the end of 13-year mission to fight Afghan insurgency

  • Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, right, and ISAF Gen. Hans-Lothar Domrose attend a ceremony at the ISAF headquarters in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)

    Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, right, and ISAF Gen. Hans-Lothar Domrose attend a ceremony at the ISAF headquarters in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)  (The Associated Press)

  • Afghan and international soldiers stand at attention during a ceremony at the headquarters of the U.S.-led International Security Assistance Force in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)

    Afghan and international soldiers stand at attention during a ceremony at the headquarters of the U.S.-led International Security Assistance Force in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)  (The Associated Press)

  • Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, center, and Command Sgt. Maj. Delbert Byers, center right, case the ISAF flag during a ceremony at the ISAF headquarters in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)

    Commander of the International Security Assistance Force (ISAF), Gen. John Campbell, center, and Command Sgt. Maj. Delbert Byers, center right, case the ISAF flag during a ceremony at the ISAF headquarters in Kabul, Afghanistan, Sunday, Dec. 28, 2014. The United States and NATO formally ended their war in Afghanistan on Sunday with the ceremony at their military headquarters in Kabul as the insurgency they fought for 13 years remains as ferocious and deadly as at any time since the 2001 invasion that unseated the Taliban regime following the Sept. 11 attacks. (AP Photo/Massoud Hossaini)  (The Associated Press)

The United States and NATO will formally end 13 years of war in Afghanistan with a ceremony at their military headquarters in Kabul.

The ceremony on Sunday will mark the end of the U.S.-led International Security Assistance Force, which will transition to a supporting role with 13,500 soldiers starting Jan. 1.

The mission ends with 2,224 American soldiers killed, of a total tally of some 3,500 foreign troop deaths. The mission peaked at 140,000 troops in 2010.

ISAF's draw-down will leave the Afghan security forces to battle with an intensifying insurgency as the Taliban have taken advantage of the departure of the foreign troops to spread their footprint across the country.

The United Nations says civilian casualties will hit 10,000 for the year, mostly caused by the Taliban.