FIIA Comment

FIIA Comment 23 (2015)   

Mutual defence in the EU:
The response to the terrorist attacks in Paris is a testing ground for the European security and defence policy

Published 19.11.2015

Teija Tiilikainen
The Finnish Institute of International Affairs

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The decision to activate the mutual defence clause of the Lisbon Treaty in the wake of the terrorist attacks in Paris represents the first effort to define the clause in practice. Experience gained from this case will show whether more joint planning or common structures are needed in the future.