in which military conflict were arthur wellesley and george iv of the united kingdom commanders ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commander dbr_Arthur_Wellesley,_1st_Duke_of_Wellington sep_dot var_uri dbo_commander dbr_George_IV_of_the_United_Kingdom sep_dot var_uri a dbo_MilitaryConflict brack_close