An ~ is a situation in which two countries or groups of countries are continually trying to get more and better weapons than each other.
N-SING
An ~ is a situation in which two countries or groups of countries are continually trying to get more and better weapons than each other.
N-SING
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012