32 C.F.R. § 935.94 – Answer.

(a) The defendant may, at his election, file an answer to the complaint.
(b) The defendant may file a counterclaim, setoff, or any reasonable affirmative defense.
(c) If the defendant elects to file a counterclaim, setoff, or affirmative defense, the Court shall promptly send a copy of it to the plaintiff.