 And Lebanon's Hezbollah chief, Said Hassan Nasrallah, said on Tuesday any aggression against Jerusalem or its holy sites would mean regional war. Nasrallah's comments in a televised speech were his first since the ceasefire ended the fiercest fight in years between Israel and Gaza-based Islamist militant group Hamas. The Israel Hamas hostilities were set off on May 10 in part by Israeli police raids on the Alaska Mosque compounding Jerusalem's old city and clashes with Palestinians during the Muslim Holy Month of Ramadan. Nasrallah said all the resistance movements could not sit back and watch if holy sites were in danger. The Iranian-backed Lebanese group is a staunch opponent of Israel and Nasrallah's speech marked the commemoration of Israel's withdrawal from southern Lebanon in 2000. Nasrallah, who also said the fighting showed Hamas had greatly advanced its rocket capabilities, which he said was a big military achievement. Be sure to hit the bell button so you get notified about fresh news updates.