The Pentagon is considering sending between 3,000 to 5,000 additional troops to Afghanistan to advise Afghan military and police units fighting the Taliban, as well as an unspecified number of special operations forces to fight ISIS and al-Qaida militants along the Pakistani border.

A senior Afghan defense official also told the Military Times that NATO was considering  deploying up to 13,000 troops into the country.

In February,  Army Gen. John Nicholson, the top US commander in Afghanistan, told Congress that thousands of more troops were needed in part because outside powers have increased their meddling in Afghanistan in the last year, making it tougher for the US-backed government in Kabul to quell the violence.

The war in Afghanistan,  the longest in American history, was characterized by Nicholson as a stalemate in February.