Regarding killing the demons, yes, Krsna has done it. "paritranaya sadhunam/ vinasaya ca duskrtam (BG 4.8)." But, for us to kill like that we first have to become first class Krsna devotees like Arjuna or Hanuman, then we can fight with the Ravanas and demons. But that requires good strength, and we are not in that position now. Caitanya Mahaprabhu did not kill the demons, but He converted them. So this should be our example.
I am glad to note the work of Cakravarti and Prthu at the Belgrade Book Fair. This is real progress. So from all the literatures you are distributing you spend this money for spreading Krsna consciousness in Poland, Czechoslovakia, Hungary, and East Germany, and prepare men. Put all of our books into the local languages.