President Reagan demonstrated that is precisely the action of a man that wants peace through his "Peace Thru Strength" policy regarding the Soviet Union. Being prepared for war often times insures that a war will not become necessary.
I'm sure Lenin and Mao also believed that strength was essential to get things done in politics. So do a lot of other political thugs. What would we today think if a breakaway political leader started to accumulate nuclear weapons a couple of weeks after taking power?
If you want to break away from the rest of the country, you have to establish your moral and political legitimacy first. Calling for a force several times the size of the national army, as Davis did, doesn't do that and scares the people you have to convince.