The area east of the line, covering 53% of the Gaza Strip's territory, is under Israeli military control, while the area west of the line, covering 47% of the Gaza Strip, is controlled by Hamas. The US has referred to the Palestinian-controlled western area as the "red zone" and the Israeli-controlled eastern area as the "green zone". Israel prevents
Palestinians from crossing east of the line, including those displaced from this area during the war, and has killed Palestinians it alleges to have been approaching the line. The demarcation line is currently partially marked by yellow-painted concrete blocks laid down by the Israeli military; as of 28 October 2025, around 10–20% of that work had been completed.Satellite images show that Israel has placed markers outside of the boundary indicated on the agreed ceasefire maps, sometimes by hundreds of meters. In January 2026, based on satellite imagery,
BBC Verify reported that Israel moved the yellow blocks in several areas deeper into the Gaza Strip, causing confusion for Palestinians. According to the report, satellite images showed that Israeli troops moved at least seven blocks in
Tuffah,
Gaza City between 27 November and 25 December 2025, with the markers moved around 295 meters deeper into the strip. Andreas Krieg, a professor and Middle East expert from
King's College London, called the movement of the blocks as a "tool for territorial engineering". == Impact ==