Staff at a Post Office in Kings Heath will walk out in protest over jobs, pay and closures today.
Commercial Workers Union members will be protesting outside the branch as it is one of 70 that could be closed or turned into a franchise.
300 Crown Post Office staff members, from across the UK, are expected to walk out in support of the protest.
The Post Office say that nearly 12,000 branches are unaffected.
More top news
A compilation of Boxing Day snowy scenes across the Midlands.
A cold outlook across the region weather-wise.
Leaders Northampton face Harlequins at English rugby HQ