The Taliban were in full control of Kabul’s international airport on Tuesday, after the last U.S. plane left its runway, marking the end of America’s longest war.

Vehicles carrying the Taliban raced back and forth along the Hamid Karzai International Airport’s sole runway on the northern, military side of the airfield. Before dawn broke, heavily armed Taliban fighters walked through hangars, passing some of the seven CH-46 helicopters the State Department used in its evacuations before rendering them unflyable.

Taliban leaders later symbolically walked across the runway, marking their victory while flanked by fighters of the insurgents’ elite Badri unit.

“The world should have learned its lesson and this is the enjoyable moment of victory,” Taliban spokesman Zabihullah Mujahid said in a livestream posted by a militant.

Mujahid also addressed the gathered members of the Badri unit. “I hope you be very cautious in dealing with the nation,” he said. “Our nation has suffered war and invasion and the people do not have more tolerance.”

Read:As US military leaves Kabul, many Americans, Afghans remain

At the end of his remarks, the Badri fighters shouted: “God is the greatest!”

Later speaking to Al-Jazeera Arabic on the tarmac, Mujahid rejected having a caretaker government and insisted that Kabul remained safe.

“There will be security in Kabul and people should not be concerned,” he said.

In another interview with Afghan state television, Mujahid also discussed restarting operations at the airport, which remains a key way out for those wanting to leave the country.

“Our technical team will be checking the technical and logistical needs of the airport,” he said. “If we are able to fix everything on our own, then we won’t need any help. If there is need for technical or logistics help to repair the destruction, then we might ask help from Qatar or Turkey.”

He didn’t elaborate on what was destroyed. Marine Gen. Frank McKenzie, the head of U.S. military’s Central Command, earlier said troops “demilitarized” the system so it can never be used again. Officials said troops did not blow up equipment in order to ensure they left the airport workable for future flights, once those begin again. In addition, McKenzie said the U.S. also disabled 27 Humvees and 73 aircraft so they cannot be used again.

Taliban fighters draped their white flags over barriers at the airport as others guarded the civilian side of the airfield. Inside the terminal, several dozen suitcases and pieces of luggage were left strewn across the floor, apparently left behind in the chaos. Clothes and shoes also were scattered. A poster of Ahmad Shah Massoud, the famed anti-Taliban fighter, had been destroyed.

“Afghanistan is finally free,” said Hekmatullah Wasiq, another Taliban official. “The military and civilian side are with us and in control. Hopefully, we will be announcing our Cabinet. Everything is peaceful. Everything is safe.”

Wasiq also urged people to return to work and reiterated the Taliban pledge offering a general amnesty. “People have to be patient,” he said. “Slowly we will get everything back to normal. It will take time.”

The airport had seen chaotic and deadly scenes since the Taliban blitzed across Afghanistan and took Kabul on Aug. 15. Thousands of Afghans besieged the airport, some falling to their death after desperately hanging onto the side of an American C-17 military cargo jet. Last week, an Islamic State suicide attack at an airport gate killed at least 169 Afghans and 13 U.S. service members.

Read:Last troops exit Afghanistan, ending America’s longest war

But on Tuesday, after a night that saw the Taliban fire triumphantly into the air, guards now blearily on duty kept out the curious and those still somehow hoping to catch a flight out.

“After 20 years we have defeated the Americans,” said Mohammad Islam, a Taliban guard at the airport from Logar province, cradling a Kalashnikov rifle. “They have left and now our country is free.”

“It’s clear what we want. We want Shariah (Islamic law), peace and stability,” he added.

Mohammad Naeem, a spokesman for the Taliban’s political office in Qatar, similarly praised the takeover in an online video early Tuesday.

“Thank God all the occupiers have left our country completely,” he said, congratulating fighters by referring to them as mujahedeen, or holy warriors. “This victory was given to us by God. It was due to 20 years of sacrifice by the mujahedeen and its leaders. Many mujahedeen sacrificed their lives.”

Zalmay Khalilzad, the U.S. special representative who oversaw America’s talks with the Taliban, wrote on Twitter that “Afghans face a moment of decision & opportunity” after the withdrawal.

“Their country’s future is in their hands. They will choose their path in full sovereignty,” he wrote. “This is the chance to bring their war to an end as well.”

But the Taliban face what could be a series of major crises as they fully take over the government. The majority of the billions of dollars Afghanistan holds in foreign reserves is now frozen in America, pressuring its now-depreciating Afghani currency. Banks have implemented withdrawal controls, fearing runs on their deposits in the uncertainty. Civil servants across the country say they haven’t received their salary in months.

Medical equipment remains in short supply, while thousands who fled the Taliban’s advance remain living in squalid conditions. A major drought also has cut into the country’s food supplies, making its imports even more important and raising the risk of people going hungry.

Read:Afghanistan after US pullout: Qatar emerges as key player

During the evacuation, U.S. forces helped evacuate over 120,000 U.S. citizens, foreigners and Afghans, according to the White House, making it the largest airlift in the history of the American military. Coalition forces also evacuated their citizens and Afghans. But for all who got out, foreign nations and the U.S. acknowledged they didn’t evacuate all who wanted to go.

At the airport’s eastern gate, a handful of Afghans still tried their luck to get in, hoping for any flight. As of now, however, commercial airlines are not flying into the airport and it remains unclear who will take over managing the country’s airspace. On their way out, the U.S. military warned pilots the airport was “uncontrolled” and “no air traffic control or airport service are available.”

Several of those trying to come into the airport came from Kandahar province, the Taliban heartland in southern Afghanistan that saw some of the war’s fiercest fighting. One of the men, Hekmatullah, who like many Afghans goes by one name, carried paperwork he said showed he worked as a translator.

Hekmatullah said he had waited four days for an opportunity to leave.

“But now I don’t know what chances I have,” he said.