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
(..) Ask him where it is. He could lead us to it. No. The pirates who invaded this fort left Sparrow locked in his cell, ergo they are not his allies. We will establish their most likely course. That's not good enough! Mr.Turner, you are not a military man. (..)2003 Pirates of the Caribbean: The Curse of the Black Pearl