Nearly 7,000 Syrians will be allowed to remain in the United States for another 18 months, the Trump administration has said, but no more Syrian citizens will be able to apply for the special protection programme.

Under a humanitarian programme known as “Temporary Protected Status”, thousands of Syrians have been allowed to avoid returning to their war-torn country of origin, but the current scheme is set to expire on March 31, forcing a decision on whether to extend.

Homeland Security Secretary Kirstjen Nielsen said “ongoing armed conflict and extraordinary conditions” justified the extension to September 30 2019.

The relief at being spared 18 months is tinged with disappointment that applicants must have been in the United States since August 1 2016, disqualifying newer arrivals.

The decision will be felt hardest in California, Michigan and Texas, top destinations for the roughly 86,000 Syrians living in the United States.

It follows a contentious debate within the Trump administration about whether to cut off the programme, with immigration hardliners in the White House urging a total halt to the scheme while the State Department and other agencies argued for continuing it.

Since taking office, Donald Trump has cut off the special protections for citizens of several countries, including Honduras and El Salvador, after determining that once-perilous conditions no longer preclude citizens from going home.

Trump One Year The View From Overseas
Syrians were offered protection in the United States (AP Photo/Felipe Dana, File)

Yet Syria remains entangled in a bloody civil war that shows no signs of being resolved in the near future. Although the Islamic State group that once controlled much of Syria has been squeezed from almost all of its former territory, armed opposition groups continue to fight with each other, with Syrian president Bashar Assad’s forces and with extremist groups that continue to pose a threat across Syria.

US military forces are active both on the ground and in the skies above Syria.

The Trump administration has faulted previous US administrations for letting foreigners stay in the United States long past when the natural disasters or other emergencies that necessitated the special protections have been resolved.

Nielsen stressed that she believes such protections should be temporary, and Trump has advocated resettling Syrian refugees closer to home.

The US created Temporary Protected Status in 1990 to provide a safe haven from countries affected by earthquakes, floods, hurricanes, war and other disasters, and it currently shields several hundred thousand people from 10 countries.