Source: Stratfor:
To begin to make sense of the escalating conflict in Gaza, we need to go back to the night of Oct. 23 in Khartoum. Around 11 p.m. that night, the Yarmouk weapons facility in the Sudanese capital was attacked, presumably by the Israeli air force. There were indications that Iran had been using this facility to stockpile and possibly assemble weapons, including anti-aircraft missiles, guided anti-tank missiles and long-range Fajr-5 rockets capable of reaching Tel Aviv and Jerusalem from Gaza.