Why do you think everyone else was somber by the arrival of the Jackboots?

The somber reaction to the arrival of the Jackboots likely stemmed from their association with oppression and violence, representing an authoritarian regime that instills fear in the populace. Their presence often signifies the loss of freedom and safety, prompting a collective anxiety about potential persecution. Additionally, the Jackboots' intimidating demeanor may evoke memories of past traumas, reinforcing a shared sense of dread among those witnessing their arrival.