On Monday, the Israeli military said that it had thwarted a raid by a Hezbollah “terrorist squad” along its northern border with Lebanon. The encounter led to an exchange of fire that capped days of mounting tension. An Israeli military spokesman said that a small squad armed with assault rifles had crossed into Israel through an unfenced part of the boundary. An IDF spokesman said Israeli forces responded by firing small arms, tank guns, and artillery, which pushed the squad back into Lebanon, where they proceeded to fire on Israel. Hezbollah, the Lebanese militant organization, denied that there had been an exchange of fire, saying it had only come from the Israeli side. The Israeli military had been bracing for retaliation from the group since a Hezbollah's operative was killed by a strike in Syria, last week. That action was widely thought to be the work of Israel.