Syria considered Abdallah's schemes for an expanded Hashimite kingdom as intervention in its domestic affairs and officially complained to the Arab League.

[3][4][5] Jordan was also alleged to have been working with Saudi Arabia, Russia, and Israel in an attempt to curb Iranian involvement in Syria.

"[11] Jordan is part of the American-led intervention in Syria, and has established a "special working mechanism" to coordinate its involvement there with the Russian military intervening in the civil war on Assad's side.

[15] On July 19, 2021, US president Joe Biden met with Jordanian king Abdullah II and discussed, among other things, the future of the Syrian crisis.

The Jordan Armed Forces-Arab Army delivered rescue equipment, tents, medical supplies and food.

[19] In addition, the Jordanian Foreign Minister Ayman Safadi visited Damascus for the first time since the start of the Syrian Civil War.

[21] Syrian foreign minister Asaad Hassan al-Shibani made an official visit to Jordan on 7 January 2025 where both countries agreed to form a joint security committee to counter smuggling across their common border.