A wave of December 2025 strikes and demonstrations is planned across Brussels in multiple sectors, with additional actions possible as negotiations unfold.

Following a three-day nationwide strike in late November, Belgian unions anticipate a broad December action wave across the country.

Unions warn that government policies on wages, working conditions, and pension reforms, as well as sector-specific budgets, could trigger wider actions if talks stall.

In the firefighters sector, the CSC says actions could begin if Interior Minister Bernard Quintin does not agree to a meeting by December 15, amid staff shortages and pension reform concerns.

Firefighters threaten potential actions if they do not secure a December 15 meeting with the minister, citing chronic staffing gaps and pension-related impacts.

Retail and supermarket negotiations continue, with no immediate actions but a broad social action plan starting December 4 and a new round of talks slated for December 17.

Public transport and aviation unions have not announced December actions yet, but could stage stoppages in December if government responses remain unsatisfactory.

Union leaders emphasize that December actions will depend on ongoing negotiations and may appear as one-off or ongoing stoppages based on outcomes.

In Saint-Josse-ten-Noode, public administration staff plan December actions to seek clarity on year-end bonuses and meal vouchers, signaling potential multiple strike days after an initial one-day action.

Education sector protests are planned on December 11 across universities in Wallonia, Flanders, and Brussels, starting at VUB and ending at Place du Luxembourg, over budget cuts that threaten over 1,000 higher-education jobs and potential tuition increases.