Simultaneous with Israel's February raid, the Baghdad Pact was formed between some regional allies of the UK. Nasser considered the Baghdad Pact a threat to his efforts to eliminate British military influence in the Middle East, and a mechanism to undermine the Arab League and "perpetuate [Arab] subservience to Zionism and [Western] imperialism". Nasser felt that if he was to maintain Egypt's regional leadership position he needed to acquire modern weaponry to arm his military. When it became apparent to him that Western countries would not supply Egypt under acceptable financial and military terms, Nasser turned to the Eastern Bloc and concluded a US$320,000,000 armaments agreement with Czechoslovakia on 27 September. Through the Czechoslovakian arms deal, the balance of power between Egypt and Israel was more or less equalized and Nasser's role as the Arab leader defying the West was enhanced.

What agreement ran contrary to Nasser's efforts?