Royal Mail workers, university lecturers and school teachers are going on strike as industrial unrest continues to spread across the UK in disputes over pay, pensions and working conditionsPicket lines are being organised outside postal delivery and sorting offices, universities and schools as unions inch closer to coordinated industrial actionThis will be one of the biggest walkouts of the year so farTalks have been held between leaders of unions involved in the disputes to take joint action, such as holding strikes on the same dayThe Royal Mail will be striking for two days across the entire UKUniversity employees also began striking today which will affect thousands of studentsNurses are set to strike next month amid disputes over pay for NHS workersAt least 177 NHS organisations in the UK will be affected when nurses take to the picket lines following an unprecedented vote over fair wagesThere is a chance that nurses receive and accept a pay offer before the strikes take placeIn Scotland, the first national schools strike since the 1980s is taking place with a one-day walkout by teaching staffPupils at nearly every primary and secondary school and many council nurseries are affected by industrial actionA revised pay offer on Tuesday was rejected as 'insulting' by unionsHundreds of G4S security staff who deliver cash have voted to strike in December, prompting fears of shortages ahead of ChristmasThis could impact the supply of cash to banking clients such as Barclays, HSBC and Santander, and supermarketsRail strikes will affect the UK during the Christmas period as train operators will stage walkouts between 13-17 December 2022.This will likely impact some services on the morning after the strikes.Industrial action is a response to rising inflation amid the drastic cost of living crisis which is severely impacting families in the run-up to the festive periodPA