Annen has frequently expressed dissatisfaction with the information provided by NATO headquarters. Following statements by the Supreme Allied Commander Europe (SACEUR), General Philip M. Breedlove, on troop advances on the border between Russia and Ukraine in early 2015, Annen publicly complained that "NATO in the past has always announced a new Russian offensive just as, from our point of view, the time had come for cautious optimism." He added that "we parliamentarians were often confused by information regarding alleged troop movements that were inconsistent with the information we had."