TEL AVIV, Israel – The U.S. and European countries should seriously consider adapting the Israeli model of combatting terrorism in order to fight an increasingly aggressive Islamic State, former Mossad chief Shabtai Shavit told Breitbart Jerusalem. These measures include deploying armed guards to protect soft targets like restaurants, shopping centers, and movie theaters. “You have to strike the right balance between defense and offense,” posited Shavit, who led Israel’s Mossad intelligence agency from 1989 to 1996. “If you adopt only the defensive strategy, pretty soon you realize that your investments achieve a prohibitive level.” Shavit argued that the coordinated terrorist attacks in Paris last Friday need to be analyzed in the wider context of other purported ISIS assaults over the past week. These include the group’s claim that it downed a Russian airliner over Egypt, as well as a double suicide attack in Beirut on Thursday. These three events, said Shavit, indicate a change in ISIS strategy. “Until recently, ISIS was involved in killing other Arabs and Muslims, but now they have made a strategic change in their strategy. They have decided to go after what they call the infidels, and kill not only Arabs and Muslims but also Europeans and