All of the Ukraine color revolutions were clearly US / CIA / foreign intelligence agency backed (https://www.theguardian.com/world/2004/nov/26/ukraine.usa). Both the EU, Germany and the US had their favourite political operatives in the fight. Various NGOs including German ones paid protestors daily stipends to continue protesting on Maidan, provided them with food and other assistance.
There is no question that the irregular forces in Ukraine received military equipment from Germany, US and other sources. There is videos documenting that. Part of the anti-russian forces were literal neo-nazis, complete with insignia used during world war 2. The Vice magazine war reporting (Russian Roulette in Ukraine) documents both of these statements.