BRUSSELS (AP) — Secretary of State John Kerry is joining diplomats from around the world in hopes of persuading Afghan leaders to let international troops remain in Afghanistan beyond 2014. Officials will discuss the issue today and tomorrow at a NATO summit in Brussels.

The U.S. wants to keep thousands of troops in Afghanistan to continue training and advising local forces.

And other NATO counties are expected to follow suit once Washington and Kabul reach an agreement. But Afghan President Hamid Karzai so far has balked at signing the proposal.