In a meeting with President Ashraf Ghani on the sidelines of Munich Security Conference on Saturday, U.S. Vice President Mike Pence said the United States continues to assess "the increase of American troops for training their Afghan counterparts", the Presidential Palace said in a statement.

Pence said Afghanistan has "a special importance for the United States and they will continue their cooperation and support to the Afghan government and the Afghan people", the statement said.

Pence also commended "the courage and efforts of Afghan Security and Defense Forces".

President Ghani meanwhile thanked the United Sates for its support to Afghanistan and praised the U.S. forces for their sacrifices in the country.

Ghani said in their meeting that the war in Afghanistan was not a "an internal war" rather that Afghanistan was on the frontline of global security and the fight against terrorism.

He added that while Afghanistan had access to all required capacities for combating terrorism the Afghan Air Force needed further equipment and empowerment.

Ghani invited the U.S. vice president to visit Afghanistan. Pence also invited the Afghan president to visit the United States, the statement read.

The two sides also discussed a four-year security plan for Afghanistan and the preparations for holding the parliamentary elections in the country.