After Hamas launched thousands of rockets, broke through the Israeli border and took hostages in southern towns in a surprise attack on Saturday, Israel has retaliated with its own missile strikes and declared war.

Now, Hamas has threatened to execute an Israeli captive for every unannounced strike on civilians, and Israel says it will block food, water and fuel from entering Gaza in a “complete siege.”

As Israeli troops amass near Gaza, what could come next? Shayndi Raice is the Wall Street Journal’s deputy bureau chief for the Middle East and North Africa, and she’s based in Tel Aviv.

An earlier version of this episode stated Hamas paragliders landed at the center of an Israeli music festival before opening fire. As CBC has not independently verified the involvement of paragliders in shootings at the festival, the reference has been removed.