In this Sunday, Oct. 9, 2016 photo, Hezbollah fighters stand atop a car mounted with a mock rocket, as they parade during a rally to mark the seventh day of Ashoura, in the southern village of Seksakiyeh, Lebanon.AP Photo/Mohammed ZaatariIsrael and Hezbollah regularly trade fire, but the two are steadily exchanging escalatory remarks.Hezbollah has greatly increased its fighting capacity over the last two decades.The Iran-backed militants now maintain a huge arsenal of munitions that could threaten Israel.