Postnup

There is quite a lot of marriage material in the name and family of 3-year-old winning filly Postnup (f, 3, Declaration of War--I'm Engaged, by Broken Vow). Is the proposal of a "postnup" somehow related to a declaration of war? Hopefully not. According to Google a "postnup" is "a legally binding contract--entered during the marriage, as opposed to a prenup--that spells out who gets what portion of specified assets and how liabilities are shared in the event of a divorce." So it is more like a treaty, and treaties, among...