Protested....I am not sure what you are asking here? :-/
It seems that you have missed the given image for us to answer this question, but anyway, I searched for it and found it. So based on the illustration, the event in Belgium that is illustrated in this recruitment poster is <span>Belgium after Great Britain declared war. Hope this answers your question.</span>
Dictator? Tyrant? Could be a few others like authoritarian.