After Revolution of Dignity and collapse of V.Yanukovych regime in Ukraine Russian Federation has started the open aggression against it. It received different titles but almost all political players in Europe and North America felt the devastating consequences of the information warfare for Ukraine. The information warfare waged by Russian Federation is provided at the strategic, operational and tactical levels and includes different mechanisms of influence on opposite side.
Key words: information warfare, propaganda, aggression, security, Ukraine, European Union.