Hormonal therapies are generally preferred treatments of breast cancer because they have minimal side effects. Hormone receptor positive breast cancer generally does not respond very well to chemotherapy, which has many side effects. Hormonal therapy with a single drug such as Anastrozole is the main type of treatment used to reduce the risk of cancer recurrence. Whether a combination of Anastrazole nad Fulvestrant is effective and feasible is not known. This study is being done to answer this question.