With each strike, fears grow that Israel, the US and Iran's allies are inching closer to all-out war

In the last week alone, an Israeli airstrike has killed a Hezbollah commander in Lebanon, Hezbollah struck a sensitive Israeli base with rockets and Israel killed a senior Hamas militant with an airstrike in Beirut.

Each strike and counterstrike increases the risk of the catastrophic war in Gaza spilling across the region.

In the decades-old standoff pitting the U.S. and Israel against Iran and allied militant groups, there are fears that any party could trigger a wider war if only to avoid appearing weak. A U.S. airstrike killed an Iran-backed militia leader in Baghdad last week, and the U.S. Navy recently traded fire with Iran-aligned Houthi rebels in the Red Sea.

The divisions within each camp add another layer of volatility. Hamas might have hoped its Oct. 7 rampage across southern Israel that triggered the war in Gaza would drag its allies into a wider conflict. Israelis increasingly talk about the need to change the equation in Lebanon even as Washington aims to contain the conflict.