Bush easily fits the definition of a deserter...
Section 885. Art. 85. Desertion (a) Any member of the armed forces who -
(1) without authority goes or remains absent from his unit,
organization, or place of duty with intent to remain away
therefrom permanently;
(2) quits his unit, organization, or place of duty with intent
to avoid hazardous duty or to shirk important service; or
(3) without being regularly separated from one of the armed
forces enlists or accepts an appointment in the same or another
one of the armed forces without fully disclosing the fact that he
has not been regularly separated, or enters any foreign armed
service except when authorized by the United States;
is guilty of desertion.
(b) Any commissioned officer of the armed forces who, after
tender of his resignation and before notice of its acceptance,
quits his post or proper duties without leave and with intent to
remain away therefrom permanently is guilty of desertion.
(c) Any person found guilty of desertion or attempt to desert
shall be punished, if the offense is committed in time of war, by
death or such other punishment as a court-martial may direct, but
if the desertion or attempt to desert occurs at any other time, by
such punishment, other than death, as a court-martial may direct.
http://caselaw.lp.findlaw.com/casecode/uscodes/10/subtitles/a/parts/ii/chapters/47/subchapters/x/sections/section%5F885.htmlSection 886. Art. 86. Absence without leave Any member of the armed forces who, without authority -
(1) fails to go to his appointed place of duty at the time
prescribed;
(2) goes from that place; or
(3) absents himself or remains absent from his unit,
organization, or place of duty at which he is required to be at
the time prescribed;
shall be punished as a court-martial may direct.
http://caselaw.lp.findlaw.com/casecode/uscodes/10/subtitles/a/parts/ii/chapters/47/subchapters/x/sections/section%5F885.htmlWhere is the leap, Jennings?