"This is our nation together. We live in dignity together, and we build its sovereignty together - or Lebanon will have no life if you stand on the other side and try to confront us and eliminate us," its leader Naim Qassem said in a televised speech.

Airstrikes come as Hezbollah threatens civil war if Lebanon tries to disarm it; Lebanese PM says threats unacceptable, Beirut will do whatever is necessary for peace and stability