USA

The United States has played a leading role in global affairs since the 20th century. It is perhaps the single most important player on the international stage due to its vast military capabilities, economic influence, diplomatic reach and leadership within global institutions, which gives it a decisive role in managing international crises.

The US remains the world’s largest economy (followed by China), boosted by innovation and technological advances as well as international trade and its ability to attract global talent. US companies dominate sectors ranging from digital services to entertainment, and American cultural exports such as film and TV are viewed around the world.

Sometimes radical shifts between Democratic and Republican administrations shape international US priorities and can have a significant effect on nations the world over. Domestically, the country struggles with huge economic inequality and sharp political polarisation, with debates over American identity and responsible governance remaining central issues, particularly in the norm-defying Trump era.