Underneath Gaza is a complex network of tunnels built by Hamas over the course of several years.
Also known as the "Hamas metro," the network has been described by the IDF as an underground city, which also expands beneath the borders and into Israeli communities near the Gaza border.
These tunnels were used to transport rockets and other weapons, as well as bunkers and Hamas command centers.
Other tunnels also exist underneath Rafah, the city along the Egyptian border, which are used to smuggle goods.
The Jerusalem Post Magazine takes a look back at the year since the October 7 massacre and the Israel-Hamas War.
Yahya Sinwar's plan for October 7 and Hamas's resurrection after the war was planned years in advance.
In 1981, Israel destroyed Iraq’s nuclear reactor, leading Iran, Hamas, and Hezbollah to build underground facilities, countered by bunker-busting bombs like the GBU-28.
IDF Maj.-Gen. Dan Goldfus considers that his breakthrough in overcoming Hamas’s tunnel warfare is not about a single moment in which he had an epiphany but the result of hard, exhaustive work.
IDF targets last Hamas strongholds in Tel al-Sultan • Family publishes Hamas captivity video • Hamas warehouses in Gaza overflowing with stolen humanitarian aid
Gazan whistleblowers reveal Hamas brutality • 'Post' visits Rafah tunnels • GPO revokes Al Jazeera journalists' press credentials for national security reasons
The largest number of weapons is believed to have come from the Rafah Border Crossing, controlled by Egypt.
The IDF showed footage of a Rafah tunnel where six hostages were killed after possibly surviving there for weeks.
IDF Colonel Golan Vach was injured in a tunnel collapse while investigating Gaza Strip infrastructure and is in stable condition after evacuation.
According to those present at the meeting, the ministers were shocked by the video.