The sources said that the Hezbollah Movement has deployed 12 regiments with 1,000 fighters to Homs, Dara'a and Quneitra to face the US-backed militants in al-Tanf border crossing and foil Washington's plan for the capture of Deir Ezzur.
The sources said that the Syrian Army troops and their popular allies are trying hard to intensify their operations in Badiyeh (desert) to reach the border with Iraq and Jordan to prevent the militants backed up by the US and Jordan from attacking Deir Ezzur via the Syrian border with Jordan.
The sources further added that advances of the Syrian soldiers and Hezbollah towards the border with Iraq will be done via two flanks, including Damascus Badiyeh and Eastern Homs, which is considered to be the Syrian units' base to launch their operation to lift ISIS's siege on Deir Ezzur city and airbase.
Field sources, meantime, reported that the pro-government forces are supposed to advance in parallel towards the border with Iraq to block the movements of the militants that are trying to enter Syria through border with Jordan and from areas close to Iraq.
The army soldiers and their allies will continue their cooperation to launch a large-scale operation in Southern Damascus to reinvigorate the friendly forces in the region to restore full security to the entire regions around Damascus from the direction of Dara'a and Quneitra provinces.
A well-informed military source disclosed on Wednesday that the Syrian Army troops and the Lebanese Hezbollah were getting ready to carry out an imminent large-scale operation against ISIS in Central Syria.
The source said that the army troops and Hezbollah forces would participate in a massive operation in Central Syria as the de-escalation zones agreement freed up hundreds of fighters across the war-hit country to move to other areas.
Hezbollah fighters have accompanied vastly the army soldiers in anti-terrorism operations in Aleppo province and in Eastern Homs, the source underlined, adding that they have played very crucial role also in the restoration of security to the Syria-Lebanon borders.