2.1 We agree that geopolitical change and competition are major global trends. Western democracies’ share of economic power has declined: the G7’s share of world GDP in 1975 was 62%; it is now 45%. Conflict and instability, exacerbated by the existential issue of climate change, will likely grow in the years ahead. We are mindful that the UK will need to work hard to sustain its strong relationships, develop new ones, and lead international collaboration to address global challenges. The Integrated Review is an opportunity to do this as we define the UK’s role in the world for the next decade.