In Poland, the public humiliation received by Polish diplomats was one of the contributing factors to the fall of the Grabski cabinet. Locarno contributed to the worsening of the atmosphere between Poland and France, weakening the French-Polish alliance. Józef Beck ridiculed the treaties saying, "Germany was officially asked to attack the east, in return for peace in the west." Józef Piłsudski would say that "every honest Pole spits when he hears this word ". Proposals in 1934 for an "eastern Locarno" pact securing Germany's eastern frontiers foundered on German opposition and on Poland's insistence that its eastern borders should be covered by a western guarantee of her borders. The Locarno treaty was heavily undermined by the Franco-Soviet Treaty of Mutual Assistance on 2 May 1935, which the German government claimed was a violation of its "spirit".