A trustee or personal representative may delegate, subject to the provisions of §§ 18-3-4 — 18-3-7, to any person or to two (2) or more persons jointly the exercise of any or all functions vested in him or her as the fiduciary, during the whole or any part of:
(1) Any period during which the fiduciary is engaged in war service; or
(2) Any period during which the fiduciary is outside of the continental United States and, for any reason connected with or resulting from any war or national emergency, it is not reasonably practicable for him or her to return to the United States.