The US is drawing up plans for a quick withdrawal from Afghanistan

The US Defense Department is exploring its options to completely withdraw all US troops deployed in Afghanistan, in the event President Donald Trump abruptly makes the decision, according to NBC News.

The ongoing planning, which was not explicitly directed by the White House, includes procedures for a completely withdrawal of US forces within weeks, current and former officials reportedly said.

The Defense Department's move comes in the wake of Trump's decision to withdraw the majority of US troops in Syria, as Turkish-backed forces embark on a campaign against Kurdish groups near the Syria-Turkey northeast border.

An official described the planning as "prudent," while another official called the recent actions in Syria as a potential "dress rehearsal" for Afghanistan, NBC News reported.

Trump initially recalled roughly two dozen service members in the immediate vicinity of the Turkish excursion into Syria, but later expanded that order to around 1,000 US troops in northern Syria. Defense Secretary Mark Esper on Oct. 21, 2019, said that an undetermined, small number of US troops could still be stationed in northeast Syria to secure oil fields and prevent ISIS from taking control.

Defense Secretary Mark Esper.

(U.S. photo by Staff Sgt. Nicole Mejia)

Trump initially recalled roughly two dozen service members in the immediate vicinity of the Turkish excursion into Syria, but later expanded that order to around 1,000 US troops in northern Syria. Defense Secretary Mark Esper on Oct. 21, 2019, said that an undetermined, small number of US troops could still be stationed in northeast Syria to secure oil fields and prevent ISIS from taking control.

"USA soldiers are not in combat or ceasefire zones," Trump said in a now-deleted tweet on Sunday. "We have secured the Oil. Bringing soldiers home!"

Trump's decision to withdraw US forces caught numerous military officials and lawmakers by surprise, and attracted bipartisan condemnation for what they characterized as an abandonment of US allies and principles. Roughly 11,000 Kurds — who were allied with the US in the region — were killed in the fight against ISIS, and many more were relied upon by the US to evict the extremists from their strongholds.

"This impulsive decision by the president has undone all the gains we've made, thrown the region into further chaos, Iran is licking their chops, and if I'm an ISIS fighter, I've got a second lease on life," Sen. Lindsey Graham said during a Fox News interview on Oct. 7, 2019. (On Oct. 20, 2019, in an about-face, Graham told Fox News he is "increasingly optimistic this could turn out very well.")

Sen. Lindsey Graham.

(Photo by Gage Skidmore)

Former US Central Command commander and retired Army Gen. Joseph Votel also condemned the withdrawal, and reflected on the US's reliance on the Kurds.

"Without it, President Donald Trump could not have declared the complete defeat of ISIS," Votel wrote of the Kurdish help against ISIS in Syria. Trump has frequently claimed ISIS has been unequivocally defeated.

The US has pulled out 2,000 troops from Afghanistan so far this year, bringing the total number of forces in the country to around 13,000, Task Purpose reported. Earlier in October 2019, Esper said he was confident the US military could withdraw thousands more troops without adversely affecting operations.

Esper, who visited Afghanistan on Oct. 21, 2019, advised not to compare US policy for Syria with that of Afghanistan.

"Very different situations, very different adversaries if you will, very different level of commitment," he said, according to NBC News. "Very clear policy direction on one.

"All these things should reassure Afghan allies and others they should not misinterpret our actions in the region in the recent week or so in regard to Syria and contrast that with Afghanistan," Esper added.

This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.