More  NATO formally admitted Poland, Hungary, and the Czech Republic . The United States successfully pressured its allies to postpone a similar decision on Romania and Slovenia until 1999.
Poland is one of the three countries formally admitted by NATO.
mnli hypothesis: Poland is one of the three countries formally admitted by NATO. premise: More  NATO formally admitted Poland, Hungary, and the Czech Republic . The United States successfully pressured its allies to postpone a similar decision on Romania and Slovenia until 1999.