to China in 1997. Fourteen British Overseas Territories maintain a constitutional link to the UK, but are not part of the country per se. Britain slashed its involvements in the Middle East after the humiliating Suez Crisis of 1956. However Britain did forge close military ties with the United States, France, and Germany, through the NATO military alliance. After years of debate (and rebuffs), Britain joined the Common Market in 1973; which became the European Union in 1993. However it did not merge financially, and kept the pound separate from the Euro, which partly isolated it from the EU financial crisis of 2011. In June 2016, the UK voted to leave the EU. 21st century Foreign policy initiatives of UK governments since the 1990s have included military intervention in conflicts and for peacekeeping, humanitarian assistance programmes and increased aid spending, support for establishment of the International Criminal Court, debt relief for developing countries, prioritisation of initiatives to address climate change, and promotion of free trade. The British approach has been described as "spread the right norms and sustain NATO". Lunn et al. (2008) argue: Three key motifs of Tony Blair's 10-year premiership were an activist philosophy of 'interventionism', maintaining a strong alliance with the US and a commitment to placing Britain at the heart of Europe. While the 'special relationship' and the question of Britain's role in Europe have been central to British foreign policy since the Second World War...interventionism was a genuinely new element. The GREAT campaign of 2012 was one of the most ambitious national promotion efforts ever undertaken by any major nation. It was scheduled take maximum advantage of the worldwide attention to the Summer Olympics in London. The goals were to make British more culture visible in order to stimulate trade, investment and tourism. The government partnered with key leaders in culture, business, diplomacy and education. The campaign unified many themes and targets, including business meetings; scholarly conventions; recreational vehicle dealers; parks and campgrounds; convention and visitors bureaus; hotels; bed and breakfast inns; casinos; and hotels. In 2013, the government of David Cameron described its approach to foreign policy by saying: For any given foreign policy issue, the UK potentially has a range of options for delivering impact in our national interest. ... [W]e have a complex network of alliances and partnerships through which we can work.... These include – besides the EU – the UN