Has the Third World War already begun?

The scourge  that is ISIS

IT was Pope Francis who said it first, after the Nov. 13, 2015 terrorist attack in Paris and St. Denis, in which 130 persons were killed and 368 were injured.  He called it a piecemeal war,  apparently in  recognition of the violence occurring in various places at different times.  In Ankara, 95 were killed and 250 were injured in an outbreak of terrorism on October 11; on Oct. 31, 224 passengers and crew perished when Russia’s Metrojet Flight 9268 was blown up over the Egyptian Sinai. France responded to the attack by staging an air strike against a terrorist stronghold in the Islamic State of Iraq and the Levant, and having the UN Security Council approve a resolution condemning the outrage and calling for an international coalition against ISIS.