It doesn't matter if you're struggling with it or not as the supreme court has already ruled on it.
The majority arrived at this conclusion after undertaking an extensive analysis of the founding-era meaning of the words in the Second Amendment’s "prefatory clause" ("A well regulated Militia, being necessary to the security of a free State") and "operative clause" ("the right of the people to keep and bear Arms shall not be infringed").
The majority analyzed the Second Amendment’s two clauses and concluded that the prefatory clause announces the Amendment’s purpose.
Yes, you need a military to defend your country from other countries. And yes, it's to protect us from an oppressive government. Remember the revolutionary war lil buddy?
8 months pay isn't going to pay for 18 years