United Kingdom, Strike, Level 3: Countrywide train strikes on multiple days between 13 December and 7 January – United Kingdom [Update 20]

Update 2022-12-29: According to reports, West Midlands Railway services have been suspended since Wednesday (28 December) due to a TSSA strike. This particular walkout is expected to last through midnight on Thursday (29 December, local time). It has been reported that services should operate normally on Friday (30 December).