US occupation forces patrol the countryside of the city of Qamishli in Syria's northeastern Hasakeh province on April 20, 2022 (AFP)

The United States is fortifying its occupation bases surrounding the Conoco and Al-Omar gas and oil fields respectively using large reinforcements of its paramilitary proxies as part of its ongoing theft-operations of Syrian resources in the north.

Al Mayadeen sources said the US deployed forces from Al-Sanadid, a US-backed militia formed by the Arab Shammar tribe, and "Army of Revolutionaries (Jaysh Al-Thuwar)" forces affiliated with the Kurdish Syrian Democratic Forces (SDF) in its occupation military bases near the energy fields in the countryside of Deir Ezzor.

"Washington informed the SDF and its affiliated militias to prepare for any attack on the region from the Western bank of the Euphrates River. The United States also tasked the Free Syrian Army to mobilize, to face any attack on the 55-kilometer area in Al-Tanf," the source said.

The latest measures by the US army signal fears of growing threats to their illegal presence in the Arab country as regional shifts in favor of Syria have strengthed Damascus' position to fulfill the mission of booting all forces that contributed to the global war against the nation and caused misery and agony among its citizens for over a decade.

Al Mayadeen sources also said earlier this week that SDF mobilized its forces facing the Syrian army along the lines of contact on the banks of the Euphrates River.

The heightened readiness of US occupation forces comes as the Syrian Armed Forces, its allies, and local Resistance groups started in the past few months to carry out operations against the American military and its militants, in addition to gradually reclaiming land for the government's control.

What also raised the alarm in Washington was the unannounced military campaign launched by Damascus and supported by its Russian and Iranian allies to liberate areas in Idlib from Turkish-backed terrorist groups, on top of which is the HTS, hinting at a decision to bolster ground efforts to end the illegal presence of foreign forces and their local proxies.

Last week, sources revealed to Al Mayadeen that the Kurdish group transported 500 military armored vehicles from the city of Qamishli in the northern countryside of Al-Hasakah to the towns of Jadeed Akidat, Al-Basira, and Al-Omar oil field.

The sources added that US forces recently installed a new spy balloon in the Conoco gas field in the northern countryside of Deir Ezzor, coinciding with the arrival of reinforcements of SDF militants.

Earlier this week, the US-led international coalition conducted a series of infantry drills, in cooperation with the so-called "Army of Free Syria" faction over an area of 55 km starting from the illegal Al-Tanf occupation base on the Syrian-Jordanian-Iraqi border triangle.

But so far, "the United States has not yet been able to form any nucleus of a tribal force into militias directly affiliated with it to protect its bases in northeastern Syria from attacks," the source said.

"The coalition is trying to put pressure on the popular resistance to prevent it from expanding its operations against the illegal presence of US bases in the south and northeast of the country."