You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Seven_Years%27_War

Context:
In the attempt to satisfy Austria at the time, Britain gave their electoral vote in Hanover for the candidacy of Maria Theresa's son, Joseph, as the Holy Roman Emperor, much to the dismay of Frederick and Prussia. Not only that, Britain would soon join the Austro-Russian alliance, but complications arose. Britain's basic framework for the alliance itself was to protect Hanover's interests against France. While at the same time, Kaunitz kept approaching the French in the hope of establishing such alliance with Austria. Not only that, France had no intention to ally with Russia, who meddled with their affairs in Austria's succession war, years earlier, and saw the complete dismemberment of Prussia as unacceptable to the stability of Central Europe.

Question:
What was a major objective of Britain in joining the Austro-Russian alliance?

to protect Hanover's interests against France.