The terrorist challenge as illustrated by the September 11 tragedy was new, both in its dimensions and by reason of the feeling of insecurity it caused. Confronted with this new and unknown situation, we seem to have developed diverging perceptions and reactions in the United States and in Europe. Europe has an aversion for military solutions and a propensity to seek solutions based on mutual cooperation and interests. Yet we should beware of excessive confidence and idealism. Diplomacy cannot resolve everything. We should remain conscious that maintaining peace and stability in the world also requires clear rules, and with these, compulsory enforcement and actual power to sustain them. Please click here to read the text in full