Waterloo London, UK. 15 August 2022 . Commuters walk past a sign announcing strike action at a busy Waterloo station on Monday morning. The Rail, Maritime and Transport Workers (RMT) union has announced strike action from Thursday 18- 21 August in a walkout by train drivers who are demanding an increase in pay in line with the current inflation of 15 per cent. Passengers have been advised not to travel  on those days due to severe disruption Credit. amer ghazzal/Alamy Live News Stock Photo