The S-400 Triumph is a Russian air defence missile system created by Almaz Central Design Bureau (NATO reporting name: SA-21 Growler). The Russian Army's S-300P and S-200 air defence systems were replaced by the new system.
On Thursday night, after 11 days of bombings and rocket launches from Gaza, Israel and Hamas agreed to a ceasefire negotiated by Egypt. On Friday, the cease-fire appeared to be holding, with Palestinians having joyful gatherings across the occupied territories and Israel lifting emergency restrictions in rocket-hit areas. Both sides have stated that the ceasefire will be maintained based on the current situation on the ground.