The teacher's union has found an unlikely 'ally' in the company. [=the company supports the position that the union has taken and this was not expected]
He'll even admit that he's hoping to 'ally' himself 'to' a wealthy family by marriage.
countries 'allying' themselves 'with' the EU
(..) I wish that it were English blood. Hold your mouth! This is an Englishman. Englishman? Lord Egbert. An ally. Then drink to my father's return, Englishman! Do you want the English to think we're barbarians? This is Einar, (..)1958 The Vikings