OED) Civil war n. war between the citizens or inhabitants of a single country, state, or community; an instance of this; (also figurative); cf. sense A. 1.Frequently with the and capital initials, with reference to a particular conflict: see American, English, Spanish Civil War at first element.

Three examples of the Executive Branch employees (One is the head of the Executive Branch) deciding they will not honor the decisions of the Judicial Branch or find ways to circumvent them AND the Constitutional Rights given to the States.

https://beckernews.com/the-pentagon-announces-it-will-refuse-to-follow-any-state-laws-restricting-abortion-access-45613/

White House Doesn't Rule Out Building Abortion Clinics on Federal Land in Conservative States

Attorney General Merrick B. Garland Statement on Supreme Court Ruling in Dobbs v. Jackson Women’s Health Organization

The First US Civil War occurred when various States no longer respected the Constitutional powers of the Branches of the US Federal Government.

Will the Second Civil War occur due to the Executive Branch refusal to recognize 1) the decision of another Branch of the Federal Government and 2) the Constitutional powers denied to the Federal Government and given to the States?