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This year has also seen a number of positive developments, including a “reset” in relations between two key players in the European security dialogue: Russia and the United States. The European Union has recently taken important steps towards greater cohesion and unity with the appointment of a President and High Representative for Foreign Affairs.

We should celebrate these achievements even as we recognize that serious problems remain to be resolved. There are different perspectives on how Europe’s security architecture should be designed, but we all agree on the urgent need to tackle this critical challenge through constructive dialogue.

It is in this spirit of cooperation and bridge-building that 56 foreign ministers – representing the US, Canada, and...