Translate the following English sentence to French:
"The exercise is complicated, first because it is necessary to try to clarify relations with NATO, and because the United States not to mention other countries in NATO which are not members of the European Union, like Turkey, are not making our task any easier."
L' exercice est compliqué, d' abord parce qu' il faut essayer de clarifier les relations avec l' OTAN, et que les États-Unis, mais aussi d' autres pays de l' OTAN non membres de l' Union européenne, comme la Turquie, ne nous facilitent pas la tâche.