Understanding the Hamas-Israel conflict and the involvement of Hezbollah

Israel has declared war against Hamas after the Palestinian militant group launched a surprise attack, taking military and civilian hostages. Hamas has been a defiant adversary since winning an election in Gaza in 2006, repeatedly attacking Israel with rockets and mortars. Israel has responded with superior firepower and a punishing blockade, contributing to poor living conditions in Gaza. The conflict has escalated, with Israel expected to launch a ground incursion into Gaza soon.