The Committees on National Security and Defence and on Foreign Affairs of the Parliaments of Poland, Estonia, Lithuania and Latvia have expressed concern about serious threats to the security of all NATO member states, in the context of the recent NATO-Russia Council meeting. Below is a letter addressed to Jens Stoltenberg, Secretary General of NATO, Gerald Connolly, Chairman of the NATO Parliamentary Assembly, the respective Foreign Policy and Defence Committees of the Parliaments of NATO member states