Foreign Marriage and Divorce vs Property in US

Hi, My questions¿1. In view of past bad experiences, I intend to re-marry overseas in China, bring the wife to the US, with prenuptial stipulating (besides protection of my property) that a divorce must also be done in China; Will this be enforceable if we mostly both live in the US? 2.Will the wife need my consent when she applies for US citizenship with her (3 years? of) permanent residence? Will a China divorce be enforceable when she is still a Chinese citizen but living in the US with a green card? Pls. explain. Thanks.