What was Iran's strategy regarding Israel and why was Syria crucial to it?

Iran's strategy was to put pressure on Israel while keeping any fighting far from its own borders. Syria's territory served as the absolute linchpin in this strategy because without it, Iran would have no way to continue resupplying and supporting Hezbollah in Lebanon. This is why when the Syrian civil war threatened Assad's government, Iran and Hezbollah intervened directly with thousands of fighters to maintain this critical supply route. With Assad's regime collapse in late 2024, Iran has likely lost this invaluable land bridge across Syrian territory that enabled its regional strategy against Israel.