And what offensive capabilities the Afghans had against the mainland US or USSR? None.
Same about Syria, they would have no offensive capabilities against Israel and then Israel would have no reason to be inside Syria.
Israeli soldiers and tanks regularly enter both Syria and Lebanon as they wish.
Here they are in Lebanon:
In Syria:
Israeli tanks in Syria:
Israeli tanks in Lebanon:
Israel literally has bases that are technically inside Lebanese territory, I was in a base like that. Israeli soldiers regularly enter Lebanon and Hezbollah can't do shit.