In the year 2000, the number of migrants in the United States was 35 million while in 2015 the figure swelled up to 47 million, as per the UN International Migration data. The US was followed by its cold-war rival Russia as the country with the second most number of migrants in the world (12 million) in the year 2000, followed by Germany (9 million), India (6 million) and France (6 million). Other countries in the list include Ukraine (6 million), Canada (6 million), Saudi Arabia (5 million), UK (5 million). Australia and Pakistan supported four million migrants each while Kazakhstan, Iran and China were home to three million migrants each in 2000. The United Arab Emirates had two million refugees in the same year, as per the UN data. While it’s tough to determine who exactly is a ‘migrant’. Migrants could be defined by foreign birth, by foreign citizenship, or by their movement into a new country to stay temporarily or to settle for the long-term, as per the University of Oxford. In 2015, Germany and Russia had the largest number of migrants in the world, after USA. The two nations hosted 12 million migrants each, followed by Saudi Arabia which had 10 million migrants out of a total population of 28.83 million. In Europe, France (8 million), Spain (6 million) and Italy (6 million) were popular for migrant residents. Among non-European nations, Canada houses 8 million and and Australia 7 million migrants.