Escalating conflict between Israel and Hezbollah.

Israeli warplanes have carried out their most intense strikes in southern and Eastern Lebanon.

The Israeli military says hundreds Hezbollah sites have been it.

It follows attacks in Lebanon this week -- where communication devices exploded simultaneously over two days  killing nearly 40 people.

Hezbollah blames Israel for the explosions and has promised to retaliate.

Al Jazeera’s Zeina Khodr begins our coverage.