Eight countries are responsible for nearly three quarters of all illegal migrant crossings into Britain, bombshell new figures have revealed. The east African nation is responsible for 17.9 per cent of the total crossings. These eight nationalities make up a staggering 72.7 per cent of the total crossings in the last 12 months from March. Eight countries are responsible for nearly three quarters of all illegal migrant crossings into Britain, the latest figures have revealed | GB NEWSThe nationality breakdown has shifted significantly since the crisis began under the Conservatives. This is the highest average for any month since data on Channel crossings began in 2018.