Malaysia Airlines Flight 17 (MH17/MAS17) was a scheduled passenger flight from Amsterdam to Kuala Lumpur that was shot down by Russian-controlled forces on 17 July 2014, while flying over eastern Ukraine. All 283 passengers and 15 crew were killed. Contact with the aircraft, a Boeing 777-200ER, was lost when it was about 50 kilometres from the Ukraine–Russia border, and wreckage from the aircraft fell near Hrabove in Donetsk Oblast, Ukraine, 40 km from the border. The shoot-down occurred during the war in Donbas over territory controlled by Russian separatist forces.

Novorossiya or New Russia, also referred to as the Union of People's Republics, was a project for a confederation between the self-proclaimed Donetsk People's Republic (DPR) and the Luhansk People's Republic (LPR) in Eastern Ukraine, both of which were under the control of pro-Russian separatists.