Letter dated 97/05/14 from the Permanent Representatives of the United States of America and the Russian Federation addressed to the Secretary-General of the Conference on Disarmament transmitting four documents signed at the Joint U.S.-Russian Summit Meeting in Helsinki, Finland, on 21 March 1997, namely : a joint statement on parameters on future reductions in nuclear forces, a joint statement by the Presidents of the United States of America and the Russian Federation concerning the Anti-Ballistic Missile Treaty, a joint U.S.-Russian statement on European security and a joint statement on chemical weapons.