Suez Crisis participated in later years, since Canada had spearheaded the idea of a neutral force). By 24 April 1957 the canal was fully reopened to shipping. Egyptian sovereignty and ownership of the canal had been confirmed by the United States and the United Nations. In retirement, Anthony Eden, the British Prime Minister at the time, maintained that the military response had prevented a much larger war in the Middle East. Israel had been expecting an Egyptian invasion in either March or April 1957, as well as a Soviet invasion of Syria. The crisis may also have hastened decolonization, as many of
Prime Minister of the United Kingdom decision-making. Former ministers such as Clare Short and Chris Smith have criticised the lack of decision-making power in Cabinet. When she resigned, Short denounced "the centralisation of power into the hands of the Prime Minister and an increasingly small number of advisers". Graham Allen (a Government Whip during Tony Blair's first government) made the case in "The Last Prime Minister: Being Honest About the UK Presidency" (2003) that in fact the office of prime minister has presidential powers. However, the presidentialisation thesis has been extensively criticised as well. Keith Dowding, for example, argues that British Prime Ministers are already more