Thanos Thanos:
Israel tends to react in a measured and cautious way when the potential for blowback is too large. I don't expect them to do too much more than what they've already done because the risk of getting in a shootout with any Russians in the area is too dangerous.
Secret Alliance: Israel Carries Out Airstrikes in Egypt, With Cairo’s O.K.$1:
The jihadists in Egypt’s Northern Sinai had killed hundreds of soldiers and police officers, pledged allegiance to the Islamic State, briefly seized a major town and begun setting up armed checkpoints to claim territory. In late 2015, they brought down a Russian passenger jet.
Egypt appeared unable to stop them, so Israel, alarmed at the threat just over the border, took action.
For more than two years, unmarked Israeli drones, helicopters and jets have carried out a covert air campaign, conducting more than 100 airstrikes inside Egypt, frequently more than once a week — and all with the approval of President Abdel Fattah el-Sisi.
The remarkable cooperation marks a new stage in the evolution of their singularly fraught relationship. Once enemies in three wars, then antagonists in an uneasy peace, Egypt and Israel are now secret allies in a covert war against a common foe.
https://www.nytimes.com/2018/02/03/world/middleeast/israel-airstrikes-sinai-egypt.html__________________________
Israel knows how to use diplomacy when necessary.