Space warfare is combat in which one or more belligerents are situated in outer space. The scope of space warfare therefore includes ground-to-space warfare, such as attacking satellites from the Earth; space-to-space warfare, such as satellites attacking satellites; and space-to-ground warfare, such as satellites attacking Earth-based targets. Space warfare in fiction is thus sub-genre and theme of science fiction, where it is portrayed with a range of realism and plausibility. In the real world, international treaties are in place that attempt to regulate conflicts in space and limit the installation of space weapon systems, especially nuclear weapons.

The Russian Aerospace Forces or Russian Air and Space Forces comprise the aerial, space warfare, and missile defence branches of the Armed Forces of the Russian Federation. It was established on 1 August 2015 with the merging of the Russian Air Force (VVS) and the Russian Aerospace Defence Forces (VVKO), as recommended by the Ministry of Defence to improve efficiency and logistical support. The VKS is headquartered Moscow.