The latest results from Henley & Partners’ passport index, based on data from the International Air Transport Association (IATA), have revealed the world’s strongest passports according to the number of destinations their holders can access without a prior visa.

For the fifth year running, Japan – whose citizens are able to visit 193 out 227 destinations visa-free – tops the index.

South Koreans and Singaporeans, whose countries are tied in second place on ...