Israel attacks Lebanon

Hezbollah of Lebanon crossed the Israeli border and captured 2 Israeli soldiers and killed 3 others (possibly in another but related raid).

Israel considers the abduction "an act of war" and has begun yet another incursion into Lebanon.
The Israeli military bombed bridges in Lebanon and plans to call up thousands of reservists.

The military arm of Hezbollah said its fighters captured two Israeli soldiers "on the border with occupied Palestine, fulfilling the promise to liberate its prisoners" held by Israel.
Israel has carried out several prisoner swaps with Hezbollah to obtain freedom for captured Israelis in the past.

Again, Israel is threatening 'collective punishment' (illegal under international law).
Israel warned the Lebanese government that the Israeli military will target infrastructure and "turn back the clock in Lebanon by 20 years," if the soldiers are not returned.

Hamas, already engaging an Israeli operation in Gaza, saw this as opening a new front against Israel that would strengthen the Hamas position.