 Complete the following phrase:  Despite the overall moderate tone and MarxistLeninist orthodoxy, the Two Thousand Words called for action on the part of the public in case of military intervention and therefore denied the leading role of the party, as Vaculíks 1967 speech had. It was popular throughout Czechoslovakia with both intellectuals and workers, and its popularity only increased after the party officially condemned it. It also significantly increased the concerns of the Soviet Union. Following the Two Thousand Words, Leonid Brezhnevs party leadership, seeing a situation similar to that in 