FACTBOX: Which countries have the most troops in Afghanistan?

(Reuters) - Pakistan suspended supplies to foreign forces in Afghanistan on Tuesday, as its security forces launched an operation against militants in the strategic Khyber Pass border region, a government official said.

Neighbor Pakistan is a key supply route for more than 65,000 foreign troops from 41 nations stationed in Afghanistan to help the government fight a resurgent Taliban-led insurgency.

Here is a breakdown showing the main foreign forces in Afghanistan as of December 1, 2008.

* UNITED STATES: 35,000**

* BRITAIN: 8,745

* GERMANY: 3,600

* FRANCE: 2,785

* CANADA: 2,750

* ITALY: 2,350

* NETHERLANDS: 1,770

* POLAND: 1,130

* AUSTRALIA: 1,090

* TURKEY: 860

* SPAIN: 780

* ROMANIA: 740

* DENMARK: 700

** Includes about 15,000 U.S. troops who are part of U.S.-led Operation Enduring Freedom, not under NATO's International Security Assistance Force (ISAF) command.

-- The U.S. is expected to send up to 30,000 more troops to Afghanistan by the beginning of next summer

For a FACTBOX on Afghanistan's security forces see

AFGHAN-ARMY/NUMBERS

Sources: Reuters, NATO (here)

(Writing by Gillian Murdoch, Singapore Editorial Reference Unit; Editing by Alex Richardson)