Gold rush begins five years earlier, no Chinese exclusion act causes even larger number of immigrants. A possible butterfly to keep the Chinese exclusion act is the failure of the Treaty of Nanking failing, in which the British decide to take Hong Kong and trade footholds by force. Many immigrants flee the war to the newly prospering coast of California, agreeing to enter into indentured servitude. After the war begins, a much more Chinese California decides to strike out on their own, and once the confederacy is defeated, union troops head west to retake the pacific coast. Some cohesive bonds have emerged, as all californias want sovereignty to make their own economic choices. Many chinese troops fight for their newly adopted home, or against it believing that the Union will win and want citizenship.