Flags of NATO member countries flap in the wind outside NATO headquarters in Brussels, Tuesday, Feb. 22, 2022. World leaders are getting over the shock of Russian President Vladimir Putin ordering his forces into separatist regions of Ukraine and they are focusing on producing as forceful a reaction as possible. Germany made the first big move Tuesday and took steps to halt the process of certifying the Nord Stream 2 gas pipeline from Russia. (AP Photo/Olivier Matthys)(Olivier Matthys)