sink your differences

sink (one's) differences

Of multiple people or groups of people, to forget about or put aside the things that one argues about, disagrees with, or dislikes about the other side, usually in order to achieve a common goal. It's really remarkable to see the two factions sink their differences in the name of reclaiming their country as a sovereign state. We'll need to sink our differences if we hope to establish peace in the region.
See also: difference, sink

sink your ˈdifferences

agree to forget or ignore your past arguments or disagreements: The two groups sank their political differences and joined together to beat the ruling party.
See also: difference, sink