Russia cannot project and support sufficient conventional forces into the region to be a serious threat to Israel.
As for Iran, it was inaction by Bush and Obama that allowed them to acquire a nuke, not activities in Iraq or Syria.
If one must keep Russia out of the Middle East (and I have mixed views on that) we should increase arms to Israel and burn Iran to the ground.
It's either completely destroy Iran or be fated to a century of proxy wars.
I and millions of others want nothing to do with the proxy war scenario and would rather cede the turf (Syria, which was never in our orbit and has no oil).
You are not losing turf you are ceeding oil