 Complete the following phrase:  Following the fall of Singapore in World War II, Australia and New Zealand both came to the realisation that Britain could no longer protect her former colonies in the Pacific. Accordingly, both countries desired an alliance with the United States and in 1951 the ANZUS Treaty was signed between the three countries. This meant that if a Treaty partner came under attack, the other two would be required to come to its aid. Although none of the ANZUS partners came under attack, until, arguably, September 11, 2001, or the 