BRUSSELS (Reuters) — A coalition of NATO-led troops in Afghanistan will leave the country in coordination with a planned U.S. withdrawal by Sept. 11, Washington’s top diplomat said on Wednesday, ahead of a formal announcement of the end of two decades of fighting.

Around 7,000 non-U.S. forces from mainly NATO countries, but also from Australia, New Zealand and Georgia, outnumber the 2,500 U.S. troops in Afghanistan but still rely on U.S. air support, planning and leadership for their training mission.

President Biden is expected to officially announce the U.S. withdrawal plans Wednesday afternoon. NewsNation will stream the event live.

U.S. Secretary of State Antony Blinken said in Brussels that it was time for NATO allies to make good on its mantra that allies went into Afghanistan together and would leave together.

“I am here to work closely with our allies, with the (NATO) secretary-general, on the principle that we have established from the start: In together, adapt together and out together,” Blinken said in a televised statement at NATO headquarters.

“We will work very closely together in the months ahead on a safe, deliberate and coordinated withdrawal of our forces from Afghanistan,” Blinken said, standing alongside NATO Secretary-General Jens Stoltenberg,

NATO foreign and defense ministers will discuss their plans later on Wednesday via video conference. A senior NATO diplomat told Reuters that no ally was expected to oppose U.S. President Joe Biden’s formal announcement, expected later on Wednesday, for a complete U.S. withdrawal of troops by Sept. 11.