In 1923, the multitude of British railway companies merged into four large groups; two of these had lines in Scotland. They, the LMS and the LNER, were to have a profound affect on transport north of the border. The two "super companies" provided the Scottish public with rail services through the violence of the 1926 General Strike, the streamlined glamour of the 1930s, and the bombs and blackout of the Second World War.