Defense Secretary Chuck Hagel arrived in Afghanistan Sunday.
The secretary is meeting with commanders to discuss progress made by Afghan forces on the heels of the announcement that the U.S. is withdrawing about 10,000 troops by the end of the year.
The visit comes just one day after officials announced the final U-S soldier held by the Taliban had been released.
Seargant Bowe Bergdahl—who had been held in Afghanistan since 2009—was released in exchange for five Afghan detainees who were being held at Guantanamo Bay.
The trade was not required to receive congressional approval because his life was in danger.
Hagel spoke about that while on board a flight to Afghanistan from Singapore.
"Our primary focus, I think, as you all know was getting Sgt. Bergdahl back. Whether that could lead to possible new breakthroughs with the Taliban, I don't know. Hopefully it might," Hagel said.
Bergdahl is being treated at a medical center in Germany before returning to the states for further treatment.