The USA has military bases all over the world (including in some EU countries such us Germany, Italy, Spain, Portugal and Greece) which is expensive to their economy. List of military bases here. On 11/06/2018 Donald Trump complained about the fact that USA is protecting Europe at a high expense.
If the European parliament is working to create a much more united Europe and UK is meant to leave in the next months. Are there any remarkable European politicians who advocate to shut down all American bases in Europe?