President Barack Obama is thanking Bulgaria for its contributions and sacrifices in the U.S.-lead war in Afghanistan.

Obama spoke in the Oval Office alongside Bulgarian Prime Minister Boyko Borissov ahead of their one-on-one meeting. The president says the two leaders will discuss transition plans in Afghanistan, which call for NATO to wind down its mission by the end of 2014.

The president is also expected to be updated on Bulgaria's investigation into the July terror attack there that killed several Israeli tourists.

On an unseasonably warm day in Washington, Obama also light-heartedly recommended that the prime minister take advantage of the nice weather and see some of the sites around the nation's capital.