Councils in the Thames Valley are setting aside more money to fight the controversial HS2 project.
£1.2 million has been earmarked but more money is needed for a High Court case to try to stop the plan. Aylesbury Vale District Council had already decided to spend £100,000 to fight the rail link.
This week it has voted to spend another £50,000. Other local authorities look set to follow.
The £32 billion plan would see a new high speed line from Euston to Birmingham passing near to Wendover and Aylesbury and just north of Bicester and Banbury.
Campaigners say there is no economic case and areas of The Chilterns will be destroyed. The Government say it will create thousands of jobs, is good for the economy and will free up capacity on the London to Birmingham route which is overcrowded.