March Violets Interpretation Part 1

Part One: Reflection after reading song lyrics
I think that "March Violets" is about men in a violet colored uniform that come marching into a town. The song states that "They're coming in twos, and they come on fast, paying their dues, first things last" which can be interpreted as that he men are in a war, and the "first thing" they have to do is pay their "dues" which is to fight for something, however if they die fighting for something, then their dues, the first thing they have to do, is the last thing they do. A reference to a gun being fired also seems to tie the poem to a war. The word "March" may be ambiguous because it can be a group marching, or the month March. The words, "Can you tell them apart?" are repeated four times in the written lyrics, which suggests that if the mean are in uniform, they look like the other men they are marching with, or even like the "enemy" if they are wearing tattered, bloody clothing. On one occasion, the line, "Can you tell them apart?" slightly changes and states, "Can you tear them apart?" which may refer to killing people during a war.