The Taliban have continued attacks even as peace talks with the Kabul government are underway.
The airstrikes come as Taliban and government-appointed negotiators are meeting for the first time in Qatar.
The embassy didn't provide specifics, including how imminent the threat is.
The U.N. Security Council unanimously adopted a resolution welcoming the start of negotiations.
The two sides are in the early stages of meetings in the capital Doha.
Negotiations will be arduous and messy, delegates warned during the opening ceremony.
The negotiations were laid out in a peace deal Washington brokered with the Taliban and signed in Doha on Feb. 29.
Afghan leaders must seize this historic opportunity for peace, the State Department said in a release.
Pakistan approved several orders to implement U.N. sanctions against a number of outlawed groups, including the Taliban.
U.S. intelligence officials believe a foreign government paid "bounties" to the Haqqani network.
Military dependents and retirees have through the end of June 2021 to access benefits using ID cards that expired this year.
Capt. Kai Torkelson was relieved of command by Vice Adm. Bill Galinis, according to a Navy news release.
The Army began creating this new approach to the beginning of BCT during the spring.
Two privates stepped up and saved a buddy's life, according to a release from the U.S. Army.
The Marine Corps marksmanship community drafted the new ARQ course of fire in October 2018.