what is the military unit whose command structures are ministry of defence and ministry of defence ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commandStructure dbr_Ministry_of_Defence_ attr_open United_Kingdom attr_close sep_dot var_uri dbo_commandStructure dbr_Ministry_of_Defence_ attr_open United_Kingdom attr_close sep_dot var_uri a dbo_MilitaryUnit brack_close