Israeli soldiers taking part in a training session last week in the Golan Heights. SYRIA-ISRAEL BORDER, Golan Heights — Ever since the Iranian Islamic Revolution in 1979, Iran and Israel have been fighting each other in the shadows — through proxies, assassination squads and cyber-virus attacks, but never as rival armies meeting on the field of battle. That may be about to change, and if it does, it will have vast implications for Syria, Lebanon and the whole Middle East. I’m sure neither side really wants a war. It could be devastating for Israel’s flourishing high-tech economy and for Iran’s already collapsing currency. But Iran’s Revolutionary Guards’ Quds Force seems determined to try to turn Syria into a base from which to pressure Israel, and Israel seems determined to prevent that. And in the past few weeks — for the first time ever — Israel and Iran have begun […]