As Hezbollah leader Hassan Nasrallah speaks publicly this Friday for the first time since the start of the war between Israel and Hamas, much of the world's attention will be on whether he declares that his militant group will officially enter the conflict. Fighting between Israel and Hezbollah has been intensifying along the border in recent days, but has so far not involved a full-scale offensive. In Perspective, Filippo Dionigi, a senior lecturer in international relations at the University of Bristol, spoke to FRANCE 24's Gavin Lee about the likely ramifications of Nasrallah's speech.