A military conflict began in the Ukraine on 24th February 2022 and international community has imposed a number of economic sanctions against the Russian Federation and several countries have helped the Ukraine, not only through the supply of humanitarian material but also military equipment. Through the issue of postage stamps demonstrating our solidarity with the Ukraine, as early as 2022 the “philatelic front” was joined, independently of each other, by several European countries such as Estonia, Croatia, Latvia, Poland, Austria and Slovakia.        PostEurop, the association of European public postal operators, also decided to respond to the...