It’s not funny. Sunnis and Shiites are often at war with each other. Ditto for Arabs versus Persians.
Hamas and ISIS are both Sunni and Arab. Hezbollah is Arab and Shiia, backed by Persian Shiia money from Iran.
Know your players.
Hold out baits to entice the enemy. Feign disorder, and crush him.They are most definitely all united in their enmity for the Great Satan (us) and the Little Satan (Israel). They have no problem feigning any internecine disputes intended to not only confuse the already-addled liberal minds running DC right now (which is just too easy, sadly), but also the best of the Israeli intelligence.
The Art Of War, I:20