Factbox - The 11 countries expected to buy F-35 fighter jet

WASHINGTON (Reuters) - Canada is poised to buy 65 F-35 fighter jets built by Lockheed Martin Corp, sources familiar with the process told Reuters, which would make it the 11th country to join the program.

The United States and its allies plan to buy more than 3,100 F-35s in coming years to replace ageing F-16s, F/A-18s and other warplanes.