This monograph deals with Polish foreign policy shortly before the outbreak of the Second World War. In tracing the diplomatic activity of foreign minister J zef Beck, it discusses six general problems: (1) the Polish political situation under the pressure of appeasement; (2) the project of Intermarium and efforts to implement it; (3) the action against Czechoslovakia and the conflict with the Soviet Union; (4) the Polish attitude towards the German concept of Gesamtlosung in Germany's relations with Poland; (5) the genesis of the Polish alliance with Great Britain; (6) the Allies' military inaction after Nazi Germany's aggression. In these conditions, Poland made four key decisions: it stood against Czechoslovakia, it rejected German demands, it allied itself with the United Kingdom, and it rejected the Soviet Union's claim for the Red Army to march across Polish lands.