The sources said that the Russian reconnaissance planes are carrying out their last flights over the fortifications of the militants inside and outside of Aleppo.
In the meantime, the Syrian Special Forces and the experienced fighters of Hezbollah are mulling on the different ways to infiltrate into the defense lines of the militant groups at the first steps to the final liberation operation.
The sources added that the Syrian artillery units alongside the Russian fighter jets will pave the way for the rapid action of the ground forces of the army troops and Hezbollah fighters.
On Tuesday, sources said that several fighters of the Lebanese Hezbollah arrived in Aleppo to join the Syrian army to carry out a large-scale anti-militant operation in Aleppo in the coming days with the Russian aerial backup.
The sources said that after the victories of the Syrian army and Hezbollah in Zabadani and conclusion a six-month-long ceasefire agreement with the militants in the nearby areas of Syria-Lebanon border, a 200-member group of Hezbollah fighter has been dispatched to the battlefronts in Aleppo.
The sources said that the experienced fighters of Hezbollah, the Syrian army troops and the Russia air force are to carry out a massive joint operation to recapture the second import Syrian city of Aleppo in the coming day.