>> reporter: the next fight between israel and gaza is building. overnight wednesday, the israeli air force carried out its first air strikes in gaza since last month's cease-fire, destroying what it says were hamas military sites. the strikes a response to balloons carrying incendiary material from gaza that sparked 20 fires in southern israel tuesday. scorched earth in a region already smoldering. coming the same day as the flag march outside the entrance to the muslim quarter. some far right israeli extremists chanting, death to arabs. had is the first major test for israel's new government. the lead er pushed for a more hard line response. >> under no circumstances will i allow myself to have my hands tied while defending my people. >> reporter: bennett criticized netanyahu for being too soft on