Benazir Bhutto to take the service's entrance exams later in the year. In July 1977, Zulfikar Bhutto—who had just been re-elected in a general election—was overthrown in a military coup led by General Muhammad Zia-ul-Haq, the Chief of Army Staff. Both Zulfikar and Benazir believed that Zia's coup had been assisted by the U.S. Central Intelligence Agency (CIA); Zulfikar claimed that in a 1976 meeting, U.S. diplomat Henry Kissinger had told him that the U.S. would make "a horrible example" of him if he did not terminate Pakistan's efforts to built a nuclear bomb. Now in control of the country, Zia declared
Benazir Bhutto international support for their father. Bhutto and her mother remained in Pakistan, although they were repeatedly detained for short periods. When she was able, Bhutto visited her father in prison. She and her mother put out a book about their father and encouraged PPP supporters to demonstrate in support of him. She also assisted in the preparation of his defence case, which was put before first the Lahore High Court, which sentenced him to death, and then the Supreme Court, which upheld that decision. Former U.S. attorney general Ramsey Clark attended the trial, relating that it was a kangaroo court