Rail passengers are being warned of possible disruption to South Western Railway services at the end of December due to strikes.
The services run from London Waterloo to Exeter, Weymouth and Bristol via Yeovil.
The operator says the exact number of services that will run on Thursday 27 and Monday 31 December are yet to be made clear.
They say commuters should expect a reduced service.
South Western Railway passengers can expect major disruptions on Saturday 18 August as RMT union members plan to go on strike. The dispute is over the role of guards and services will be severely reduced.
It comes in the middle of a series of strikes across the summer. Those travelling to and from Exeter should expect replacement buses. No trains will run between Bristol Temple Meads to Salisbury or Yeovil Pen Mill.
Members of the RMT union have planned a number of strikes this month over the role of train guards, possibly causing disruption to rail services on some of South Western Railway's busiest routes.
The strikes are being held over the following two Saturdays as well as a 48-hour walk-out at the end of the month. It follows the failure of talks earlier this week.
SWR says it has offered a similar deal to one accepted by the RMT on Greater Anglia, but this is denied by the union.
South Western Railway says it has put together plans to run a full timetable on the chosen dates.
The 24-hour strikes that have been planned from midnight to 11.59pm on:
- Saturday 4 August 2018
- Saturday 11 August 2018
- Saturday 18 August 2018
A 48-hour strike has also been planned from midnight to 11.59pm from Friday 31 August to Saturday 1 September.
Workers for several railway services will go on strike in November.
Southern, South Western Railway and Greater Anglia workers will go on strike for 48 hours from 8 November.
Merseyrail and Arriva Rail North workers will strike for 24 hours.
It carries on disputes over the role of guards, the RMT union has said.
Rail services in parts of the region face disruption after South Western Railway staff voted in favour of strike action.
Members of the RMT union have agreed to walk out in a dispute over the role of guards on train services.
South Western Railway took over from South West Trains in August.
A date for the strike has not yet been fixed.
Construction workers at the Hinkley C nuclear power station in Somerset are to be balloted for strike action.
Unions have rejected a pay offer from the French energy company EDF, which is building the reactor near Bridgwater.
They say the new reactor is a high profile and complex project that can not be built on the cheap.
EDF says conditions of employment at the site are superior to the rest of the UK's construction industry.
Thomas Cook pilots will go ahead and stage three more strikes this Autumn if disputes over pay is not resolved, says the British Airline Pilots' Association (Balpa).
This follows their 12-hour walkout which started at 3am today, 8 September - the first strike by UK pilots since 1974.
The walkouts would take place on 23 and 29 September and 3 October unless there is a positive outcome from talks with conciliation and grievances service, Acas.
Staff on South Western Railway are to be balloted on strike action in a dispute over the continued use of guards on services.
The RMT union says it wants "water-tight" promises over the future of the role - which it says are crucial to safety on trains.
The railway usually runs services between Devon, Dorset and Waterloo.
Thousands of parents are keeping their children from going to school today as part of an unofficial strike in protest over controversial tests for six and seven-year-olds.
The action is condemned by Education Secretary Nicky Morgan who warned that missing school even for a single day, would be "harmful" and called for those behind the "damaging" campaign to reconsider.
Schools minister Nick Gibb echoed the sentiment, and came out in support of the exams.