Barack Obama had breakfast Sunday with U.S. troops in Kabul as part of his visit to Afghanistan.

Military spokesman Lt. Col. Dave Johnson said Obama went to an American base in the Afghan capital to dine with soldiers and sailors there.

The Democratic presidential candidate is part of a congressional delegation expected to meet later in the day with President Hamid Karzai.

Obama has made refocusing U.S. attention on terrorist threats in Afghanistan and neighboring Pakistan a centerpiece of his campaign for the November presidential election.

He opposed the Iraq war and has proposed sending about 7,000 more troops to Afghanistan.

Obama has also criticized the effectiveness of Karzai and his Western-backed government.