Well, by this logic, the United States should just seize all of Israel, because Israel attacked the USS Liberty (an act of war) in 1967.

Israel just attacked Damascus this week. By your logic, Syria now has the right to seize land from Israel. In fact, they bombed the Iranian embassy in Damascus - which is technically Iranian property - killing Iranian military leaders. So Iran now has the right to seize land in Israel too (according to your logic)

In fact, Israel has attacked all of these countries: Syria, Iraq, Yemen, Lebanon.... So I guess it's fair if they seize land from Israel, according to your logic.

In addition, Israel bombed aid workers from various countries: US/Canada, UK, Poland, Australia. All those countries should now seize land from Israel.

And of course, Gaza is being attacked by Israel, so Gazans have the right to seize Israeli land.

So, at least 10 countries now have the right to seize land in Israel (according to your logic).

When does it end?

You're just advocating a very vindictive 'eye for an eye' mentality that further escalates these cycles of violence.