Topics such as East-West trade agreements, tariffs, the arms race, international security and disarmament policy were all addressed to some extent. The most significant proposal made by President Eisenhower was his "Open Skies" plan, which called for an international aerial monitoring system. The intent of this policy was to prevent nations from stockpiling dangerous weapons, and eventually lead to the disarmament of all weapons of mass destruction. Surprisingly, one goal that American political advisers had for the conference was to not make any specific promises or guarantees to the Soviets. In the past, Soviet leaders have misinterpreted American suggestions as whole-hearted promises later on, which could serve to bring more division instead of unity. Since this meeting was the first of its kind, the seeds of unification needed to be planted, nothing else.