On April 2, fighting broke out between western-backed al-Qaeda affiliates and the Syrian army, ending the Syrian ceasefire. The groups that broke the ceasefire included al-Qaeda in Syria (al-Nusra), the Chinese Uyghur Turkistan Islamic Party (TIP), The Levant Brigade, the Freemen of Syria (Ahrar al-Sham), Division 13, and other jihadi groups. According to AP, the US-trained and armed Division 13 is now fighting alongside al-Nusra and Ahrar al-Sham. The latter two are part of the Turkey/Saudi/Qatar-backed Army of Conquest.
A 2005 RAND study also concluded that jihadis shooting down a civilian airliner would put a temporary freeze on worldwide air travel, causing a $15 billion loss to the world economy. More than a decade after this study, the present-day economic loss would be substantially higher than $15 billion.