The poster is Swedish. Sweden's last war was fought in 1814 to occupy Norway. Before that it fought in the coalition against Napoleon so that it could demand Norway in the peace settlement. Previous to that Sweden fought in the Great Northern War of 1700-1721 to maintain and extend its Baltic empire and in the 30 Years War to defend Protestantism in Germany and to seize the basis for said empire.
I suggest that the existence of civil liberties and democracy in Sweden has more to do with peaceful activism and good government that with bloodshed and violent struggle.