Hezbollah has confirmed that its leader of more than three decades, Hassan Nasrallah, was killed in an Israeli airstrike.

Israel has tracked down and assassinated leaders and commanders of Hezbollah in Lebanon and of the Gaza Palestinian militant group Hamas amid the nearly one-year-old conflicts with its arch-enemies. Here is a list of some operations against Hezbollah and Hamas senior figures that have been linked to Israel.

"Israel may achieve tactical achievements in its military operations, but it loses the strategic battle," a Hamas official said.