Israel has managed to destroy most of Gaza and is in the process of pulverizing parts of Lebanon to international condemnation and outrage and political and diplomatic isolation, but without facing effective efforts to rein it in. The price to pay for all-out war with Iran would probably be higher.

Iran's supreme leader vowed retaliation on Saturday for attacks by Israel, as an Israeli military official confirmed naval commandos seized a suspected Hezbollah operative in a Lebanon raid.

Israel has carried out airstrikes in Syria multiple times over the past year, targeting members of Lebanon's Hezbollah and officials from Iran, the close ally of both Hezbollah and Syria. But it has not previously made public any ground forays into Syria.

The Israeli military says it has seized a Syrian citizen in the current war's first announced ground operation in Syria

Israel said its troops conducted a ground raid there Sunday to capture someone they accuse of working with Iran. This comes amid pressure from the U.S. and other allies for Israel to reach ceasefire deals in Gaza and Lebanon.