People, few wearing military clothes, march during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments at Bois de la Cambre park in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

People hold a banner that reads in French: "Capital kills hospital. Money for the healthcare system!" during a healthcare workers' protest in downtown Brussels, Saturday, May 29, 2021. Protesters gathered to defend the healthcare system services and demanded more workers, better work conditions and bigger budged. (AP Photo/Olivier Matthys)

A woman dances as people gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

Police officers, in full anti-riot gear, set a security line as people gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

A woman sits in front of a police security line as people gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

People gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

People, wearing protective face masks, gather during a healthcare workers' protest in downtown Brussels, Saturday, May 29, 2021. Protesters gathered to defend the healthcare system services and demanded more workers, better work conditions and bigger budged. (AP Photo/Olivier Matthys)

Mounted police officers patrol as people gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

A woman dances in front of a police security line as people gather near EU headquarters during a so called "European Demonstration for Freedom and Democracy" protest against COVID-19 security measures taken by European governments, in Brussels, Saturday, May 29, 2021. (AP Photo/Olivier Matthys)

People, most of them wearing protective face masks, gather during a healthcare workers' protest in downtown Brussels, Saturday, May 29, 2021. Protesters gathered to defend the healthcare system services and demanded more workers, better work conditions and bigger budged. (AP Photo/Olivier Matthys)