“Tardiamente, os E. U. A. tentaram cinicamente jogar o poderio China contra a URSS; esta é uma política cega e perigosa.”

Of late, attempts have been made in the USA—at a high level and in a rather cynical form—to play the "Chinese card" against the USSR. This is a shortsighted and dangerous policy.
citado em "Peace, Détente, and Soviet-American Relations: A Collection of Public Statements" - Page 222 - by Leonid Ilʹich Brezhnev - Political Science - 1979