Since 1946 proposals made by both sides had collapse .
In 1955 hopes for disarmament were high because East-West relations had improved
In 1955 hopes for disarmament were high because both Eisenhower and Khrushchev wanted to acheive arms reduction
The USSR proposed a reduction of arm forces
The USSR proposed an eventual abolition of atomic weapon
The USSR proposed an international inspection system to supervise this
The USA wanted a stronger inspection system . It offered to allow Soviet planes to use arerial photography over the USA to check on weapons reduction, if the USSR would allow them to do the same
The USSR could not agree to this "open skies " proposal. The USA rejected Soviet alternatives as inadequate