GERMANY - In a speech to the Munich Security Conference, German defense minister Ursula von der Leyen said Europe’s countries would not be able to respond nimbly enough to global challenges if they were stymied by the need to decide joint foreign policy approaches unanimously. “Europe has to up its pace in the face of global challenges from terrorism, poverty and climate change,” she said. “Those who want to must be able to advance without being blocked by individual countries.” Her French counterpart Florence Parly said any such deepened cooperation would be complementary to the NATO alliance, which itself was based on the principle that members contributed differently depending on their capacities.