Mullah Salih Khan, a Taliban commander in the Helmand Province, told The Daily Beast on Wednesday that the group is prepared to strike "very much prepared to strike" US and Afghan government forces, warning that the Taliban will turn Afghanistan "into a nightmare" for them.

Mullah Mujahid Rahman, a Taliban subcommander from the Ghazni province, also said the group was ready to fight the US. He said the US has "proven they can't be trusted after retreating from the May 1st deadline" and that the Taliban is willing to "fight till the end" of the US occupation.

"We have the pride of defeating about 100,000 invaders from [different] countries in Afghanistan. A few thousand won't be a problem at all," he said.

Taliban spokesman Zabiullah Mujahid delivered a warning via Twitter on Wednesday. "If the agreement is breached and foreign forces fail to exit our country on the specified date, problems will certainly be compounded and those whom failed to comply with the agreement will be held liable," he said.