Palestinian Islamist group Hamas has launched a devastating attack on Israel, killing dozens and capturing captives.

Israeli Prime Minister Benjamin Netanyahu threatened retaliation, and Hamas declared war.

Israeli troops fought militants in multiple towns and military posts near Gaza.

Hamas held several Israeli hostages, including top officials, and claimed to have enough prisoners to release all Palestinians in Israeli jails.

The group blamed Israel’s increased attacks on Palestinians in the West Bank, Jerusalem, and Israeli jails for the incident.