More than 10,000 people have signed a petition to save the Royal Navy's two amphibious assault ships as well as stopping alleged plans to cut 1,000 Royal Marines.
According to reports, the move would save money and free up crew for the two new aircraft carriers, HMS Queen Elizabeth and HMS Prince of Wales.
Ministers carrying out a review of the country's defence forces insist the rumours are 'pure speculation'.
However, Government is legally obliged to officially respond to all petitions that get more than 10,000 signatures.
If it reaches 100,000, the petition - started by Plymouth Moor View MP Luke Pollard - will be considered for debate in Parliament.
Earlier this week, the chairman of the Defence Committee said that any plans to scrap HMS Albion and HMS Bulwark would be "mad".
If the cost-cutting suggestions are confirmed, the loss of HMS Albion and HMS Bulwark would leave the Navy without a dedicated amphibious assault ship.