Operators ran the first train down Afghanistan’s first major railroad Wednesday, clearing the way for a long-awaited service from the northern border that should speed up the U.S. military’s crucial supply flow and become a hub for future trade.

A cargoless train chugged into a newly built station in the northern city of Mazar-i-Sharif on Wednesday after a 47-mile (75-kilometer) trial run from the border with Uzbekistan, said Deputy Public Works Minister Noor Gul Mangal, who was on hand for the arrival.