This man articulates it quite clearly in his video:
If Obama Sends Police to Come for Your Guns, Civil War?
His introduction begins like this:
This video is a message to all American including those of you who are serving in the military and law enforcement. America is losing all of the freedoms that define it as America. The American dream will come to an end unless we draw the line.
Everyone of you is going to have to make a decision. Obama is moving to become a dictator. In order to do that, Americans must be disarmed. Our government is preparing legislation to have firm arms confiscated beginning with semi-automatic rifles and military grade hand guns. I’m asking you to become public and vocal. I’m asking you to publicly state with me that IF anyone in any level of government uses physical force to remove our firearms, that you execute them as terrorists who are trying to overthrow our form of government and turn America into a police state modeled after Nazi Germany and Communist Russia. In this video I’m going to lay out the historical facts that show where are county is headed. Specifically, I’m going to compare the United States to the rise and fall of Nazi Germany so you can the undeniable comparisons.