A march is being held in a historic naval city to protest at job losses planned by defence giant BAE Systems.
Unions said they expect a big turnout in Portsmouth on Saturday following last month's announcement that shipbuilding is to end.
More than 900 jobs will be lost, although Portsmouth will retain repairs and maintenance work.
Around 830 jobs will also be lost at yards in Govan and Scotstoun, on the River Clyde in Glasgow, at Rosyth in Fife, and at the firm's Filton office, near Bristol, as a result of a drop in work after the end of aircraft carrier work.
Unite national officer Ian Waddell said: "Portsmouth has 500 years of shipbuilding history, from the Mary Rose to HMS Dreadnought. The end of shipbuilding in Portsmouth will have tragic consequences for shipyard workers, their families and for future generations. We will be marching this Saturday to call on the Government and BAE Systems to do everything in their power to save shipbuilding jobs."
Why are you making commenting on The Herald only available to subscribers?
It should have been a safe space for informed debate, somewhere for readers to discuss issues around the biggest stories of the day, but all too often the below the line comments on most websites have become bogged down by off-topic discussions and abuse.
heraldscotland.com is tackling this problem by allowing only subscribers to comment.
We are doing this to improve the experience for our loyal readers and we believe it will reduce the ability of trolls and troublemakers, who occasionally find their way onto our site, to abuse our journalists and readers. We also hope it will help the comments section fulfil its promise as a part of Scotland's conversation with itself.
We are lucky at The Herald. We are read by an informed, educated readership who can add their knowledge and insights to our stories.
That is invaluable.
We are making the subscriber-only change to support our valued readers, who tell us they don't want the site cluttered up with irrelevant comments, untruths and abuse.
In the past, the journalist’s job was to collect and distribute information to the audience. Technology means that readers can shape a discussion. We look forward to hearing from you on heraldscotland.com
Comments & Moderation
Readers’ comments: You are personally liable for the content of any comments you upload to this website, so please act responsibly. We do not pre-moderate or monitor readers’ comments appearing on our websites, but we do post-moderate in response to complaints we receive or otherwise when a potential problem comes to our attention. You can make a complaint by using the ‘report this post’ link . We may then apply our discretion under the user terms to amend or delete comments.
Post moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours.
Read the rules hereComments are closed on this article