What dates are the August strikes taking place?
The strikes in August are to take place on 18, 19 and 20 August.
Around 40,000 RMT members from 14 train companies are to strike this week on 18 and 20 August.
The strike on the 19 August is solely for tube workers.
Why are they striking?
The strike was announced in a row over jobs, pensions and working conditions.
It’s the latest strike in what is now a long running dispute over the conditions laid out by the RMT, who went out on the biggest rail strike in three decades when around 50,000 workers walked out.
It was the catalyst for many sectors also striking, such as postal workers and more.
What has the RMT said?
General Secretary of the RMT, Mick Lynch said: "The rail industry and the government need to understand that this dispute will not simply vanish.
"They need to get serious about providing an offer on pay which helps deal with the cost-of-living crisis, job security for our members and provides good conditions at work.
"Recent proposals from Network Rail fell well short on pay and on safety around maintenance work.
“And the train operating companies have not even made us a pay offer in recent negotiations.
"We remain open for talks, but we will continue our campaign until we reach a negotiated settlement."
Regarding the Tube strikes, Lynch, said: “Our members will once again take to picket lines in this important dispute over pensions, jobs and conditions.
“They have been messed around by TfL and [London] mayor Sadiq Khan. And to add insult to injury, they have not seen the details of this funding letter from the government.
“Unless there can be assurances made about jobs, pensions and detrimental changes to working conditions, then our strike on 19 August will go ahead.”
Regarding the Tube strikes, the union also announced it would give Transport for London until 2 August to provide assurances on jobs, pensions and working conditions.
What rail companies are affected?
- Avanti West Coast
- Chiltern Railways
- Cross Country Trains
- East Midlands Railway
- Gatwick Express
- Great Western Railway
- Greater Anglia
- Northern Trains
- South Western Railway
- West Midlands Trains
- TransPennine Express
These are the companies that are set to strike on the 18 and 20 August.
What are some of the routes that could be affected?
The main one for London will be Thameslink, which stops at St Pancras and Blackfriars. Thameslink is a 24-hour main-line route and runs from Bedford, Luton, St Albans City, Peterborough and Cambridge via central London to Sutton.
Another one that will be affected is the Gatwick Express. It is a high-frequency rail passenger service between London Victoria, Gatwick Airport, and Brighton.