On 24 February 2022, Russia launched a full-scale air, land, and sea attack on the independent and democratic state of Ukraine. The United States and its allies around the world have condemned Russia's "unprecedented military aggression" as "unprovoked and unjustified." The United States and allies, including the European Union (EU), EU members, and the United Kingdom (UK), have provided or pledged new military assistance to Ukraine. Members of legislatures, local governments, businesses, and the public in the United States and many other countries have expressed support for Ukraine and have condemned Russia's invasion. This book compiles various aspects of this conflict and also includes some products published before the invasion that offer relevant background and context.