TOPSHOT - Rockets are fired from Gaza City towards Israel on October 7, 2023. Dozens of rockets were fired from the blockaded Gaza Strip towards Israel on October 7, 2023, an AFP journalist in the Palestinian territory said, as sirens warning of incoming fire blared in Israel. (Photo by MAHMUD HAMS / AFP) (Photo by MAHMUD HAMS/AFP via Getty Images)

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CNN  — 

Israel and the Palestinian militant group Hamas are fighting a war that has killed thousands and resulted in a devastating humanitarian crisis in Gaza.

The Israeli military began an offensive on the Palestinian enclave after Hamas militants launched a brutal assault on Israel on October 7 – the biggest terrorist attack in the country’s history – with gunmen killing more than 1,400 people and taking more than 200 people hostage, according to Israeli authorities.

Israel’s retaliation has been fierce, with an air, sea and ground campaign on Gaza as well as a total siege on the territory to choke its Hamas rulers.

The conflict has led to a humanitarian catastrophe in Gaza, with more than 10,000 people killed there, according to the Palestinian health ministry in Ramallah. Residents of the Strip, which is home to more than 2 million Palestinians, are trapped, lacking basic supplies and with nowhere to escape Israel’s bombs.

In response, aid groups, Arab states and the United Nations have repeatedly called for a ceasefire to allow for the delivery of food, water, medical supplies and other necessities.

Israel has so far shown no signs of scaling back its military operation, which is only widening, as it vows to eliminate Hamas once and for all.

Here’s what we know about the war.