Who gets to define “Traitor”? You?
The Constitution of the United States, to wit, Article III
Section 3. Treason against the United States, shall consist only in levying war against them, or in adhering to their enemies, giving them aid and comfort.
Using the strict interpretation of that section of the Constitution, I suspect that firing on a United States Army Fort by South Carolinians, or leading an army from Northern Virginia to invade Pennsylvania, could be considered treason in some circles.
Traitor or Treason definition:
United States Constitution. Article III, section 3 reads as follows:
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort.