Ukrainian War of Independence: The Revolutionary Insurgent Army of Ukraine occupies Yekaterinoslav and seizes seven airplanes from the UPRAF, establishing an Insurgent Air Fleet.

The Ukrainian War of Independence, also referred to as the Ukrainian–Soviet War in Ukraine, lasted from March 1917 to November 1921 and was part of the wider Russian Civil War. It saw the establishment and development of an independent Ukrainian republic, most of which was absorbed into the…