As Israel\u2019s ground war in Gaza escalates, there\u2019s another conflict threatening to spill over. Israel and Hezbollah continue to exchange fire on the Lebanon border, stoking fears that a second front may open up. \n\nWhat is Hezbollah? Why does it present a growing threat to Israel? How could an escalating conflict between the two could spark a wider regional war? \n\nJournalist Rebecca Collard in Beirut explains. \n\nFor transcripts of Front Burner, please visit: https://www.cbc.ca/radio/frontburner/transcripts\nTranscripts of each episode will be made available by the next workday.