re·vanche 
(rə-vänch, -väɴsh)
(rə-vänch, -väɴsh)n.
The act of retaliating, especially by a nation or group to regain lost territory or standing; revenge.
[French, from Old French revancher, to revenge : re-, re- + vengier, vencher, to avenge; see REVENGE.]
re·vanchism (-vänchĭz-əm, -väɴshĭz-) n.
re·vanchist adj. & n.
re·vanch·istic adj.