Of course if this war was just limited to a fight between Israel and Hamas, there would be no need for the U.S. military to intervene, because the IDF can handle Hamas quite easily.  But Hezbollah is another matter entirely.  Hezbollah possesses an extremely powerful military, and they have an arsenal of approximately 130,000 missiles ready to be fired at Israel.  If Hezbollah enters the war and starts firing thousands upon thousands of missiles at Israel, the United States will take action.

Unfortunately, we are already dangerously close to that point.  Hezbollah has not formally entered the war yet, but clashes along Israel's northern border have been happening for four consecutive days…

Cross-border violence between Lebanon and Israel has escalated into a fourth day, pushing many Lebanese in southern towns to leave as Hezbollah and the Israeli military continue to trade fire.

Hezbollah said it fired precision missiles on an Israeli position across from the Lebanese town of Dharya on Wednesday, drawing retaliatory Israeli shelling that has left a number of houses damaged.

Once Israel launches a ground operation inside Gaza, I believe that Hezbollah will formally enter the war shortly thereafter.

But it appears that Hezbollah is not just gearing up to fight Israel.  In fact, they have issued a statement declaring the U.S. to be a "full partner" in the conflict with Hamas…

Hezbollah issues a statement saying the United States is a 'full partner' of Israeli 'aggression' on the Gaza Strip. Hezbollah also says that it holds the United States fully responsible for the airstrikes that are killing civilians in Gaza.