After the end of the Second World War, when Finland sought to redefine its position vis-à-vis Germany, negotiations were dogged by the fact that Finland had been a close ally of Hitler's Germany in 1941–4 in the war against the USSR. In April 1948 Finland signed a Treaty of Friendship, Co-operation and Mutual Assistance (FCMA) with the USSR, in which the military articles were based on the need to counter a potential German attack on the Soviets via Finland's territory. Finland's international position was so difficult that it became the only country in the world that did not establish full diplomatic relations with either of the German states. It was also the only country in the world to pursue a policy of absolute neutrality vis-à-vis both Germanys. When the Finnish government offered to host the Conference on Security and Co-operation in Europe (CSCE) in May 1969, its main preoccupation was the German question, and it succeeded in fending off Soviet pressure to recognise the GDR. In 1973, with West German Federal Chancellor Willy Brandt's Neue Ostpolitik easing tensions with regard to the German question, Finland was able to establish full diplomatic relations with both German states simultaneously.