Our organisation 100TWh held on 27/09/2020 its 'Stand Up for Nuclear' at the Atomium in Brussels. The main theme of the message we wanted to issue is that there is widespread and fast growing public support for nuclear energy among the Belgian population, a fact that is not well recognised by politicians. Our action was also part of the worldwide 'Stand up for Nuclear' organised by Michael Schellenberger’s ‘Environmental Progress’.