allegiance
al·le·giance
/əˈliːʤəns/ noun , pl -gianc·es
formal : loyalty to a person, country, group, etc.
[ noncount ] I pledge allegiance to my country. [=I promise to be loyal to my country]
He owes allegiance to them for all the help they have given him.
[ count ] Both candidates are working hard to convince voters to switch allegiances.
the Pledge of Allegiance — see pledge, 1