Who is Hasan Nasrallah, the leader of Hezbollah?

Hasan Nasrallah, the head of Hezbollah, an Iranian-backed militant group with widespread political influence in Lebanon, gave his first address Friday since the Oct. 7 Hamas attack on Israel.

If Hezbollah were to escalate attacks along Israel’s northern border in response to Israel’s military offensive in the Gaza Strip, the war could spiral into a regional conflict. Nasrallah did not announce a change in policy but said all options remain “on the table.”

Here is what to know about Nasrallah’s role in Hezbollah and his views on the Israel-Gaza war.