If you are referring to the 1930s I don't think Churchill had a clear strategy of the kind that you suggest. He would have opposed most breaches of the Treaty of Versailles, which it is unclear what he would have done if Hitler had defied British protests. Most of Hitler's early aims focused on Eastern Central Europe, where British influence at the time was almost nil.
Answer: Because, predominantly in the agricultural Western region of the United States, the demand for cheap labor was extremely high at the time. The source of this cheap labor were Mexican immigrants.
Is this what you're looking for?
An international conflict taking place in northern Europe from 1618 to 1648. The war was fought between Catholics and Protestants and also drew in the national armies of France, Sweden, Spain, Denmark, and the Habsburg dynasty that ruled the Holy Roman Empire.
I believe the answer is A but I'm not positive.