By process of elimination, that leaves being prepared to defeat tyranny as the most relevant of the militia’s purposes today, as James Madison and Alexander Hamilton envisioned in The Federalist Nos. 46, 28, and 29. That is to say, not to merely “resist” tyranny, as the late Justice Antonin Scalia, mischaracterizing Justice Joseph Story’s “Commentaries on the Constitution,” pretended in District of Columbia v. Heller (2008, pp. 24-25), and certainly not to do so unsuccessfully (Heller, pp. 55-56).
Being prepared to defeat tyranny is relevant for another reason. When the left achieves absolute power in a country, it murders its political opponents.
We’ve seen this murderous intention stated most recently by Democrat Representative Eric Swalwell who said that the U.S. government would use its nuclear weapons in a hypothetical war against Second Amendment supporters refusing to give up their firearms.