The Coordinating Comma

The coordinating comma, in tandem with a coordinating conjunction (and, but, yet, so...), allows you to join two sentences—two independent clauses—to make a single sentence. You will sometimes find this comma omitted when the two joined sentences are short:

Changing any culture is no simple task, and deliberately setting out to change the Army's military culture will be no exception.

Battle experience often leads to change, but pre-war elements also continue to affect the way nations and their armed forces fight even the longest wars.

Train as you fight and fight as you train.
[The comma before the coordinating conjunction is optional in a short sentence such as this.]

Practice Exercises (12 questions)