Nusra front announcement of split, will it be the winning card in the over time?! .

The late announcement of splitting came in a critical time; it coincided with the regime forces control and siege on Aleppo city, the most symbolic headquarter of the revolutionary factions in the Syrian north, and with the inauguration of the agreement between the US and Russia to target ISIS and al-Nusra as the latter is designated a terrorist organization according to a UN resolution.