World War II began on September 1, 1939. The Pack family was in Chile. Betty, using the pseudonym of "Elizabeth Thomas" wrote anti-Nazi articles for local newspapers, probably at the instigation of Embassy intelligence officers. She obtained a job in the United States with the highly-secret
British Security Coordination (BSC), a sub-agency of the British Secret Intelligence Service (MI6).
William Stephenson headed the BSC. Pack arrived in New York on November 25, 1940, leaving her estranged husband and daughter behind in Chile. She had not seen her son in the foster home in England for several years. Pack was investigated prior to her employment by a young American Naval Intelligence agent named Paul Fairly. The two had an affair and she became pregnant and had an abortion. Pack was ordered by BSC to rent a fashionable house in Washington, DC and resume her former life mingling in Washington society. Her first major job was to persuade two prominent U.S. senators to support
Lend-Lease legislation to provide military assistance to the beleaguered British forces. Senators
Thomas Connally and
Arthur Vandenberg were opposed to Lend Lease. Pack's attempts to influence Connally failed, but after several encounters of Vandenberg with Pack, he voted in favor of Lend-Lease in March 1941 and the legislation was adopted. What means Pack used to try to persuade him—and whether she was important in changing his mind—are unknown.
Italian ciphers Pack's next major job was to obtain the Italian naval ciphers. The United States was still a neutral in World War II and Italy had an embassy in Washington. The British needed the codes to read the Italian navy messages and gain an advantage in warfare in the
Mediterranean Sea. As a teenager, Pack had been friendly (and possibly romantically involved) with an Italian naval officer named
Alberto Lais, 28 years older than her. In 1941 Lais was an Admiral and the Italian Naval Attache in Washington. Pack rekindled their relationship, which was apparently sensual and romantic but not sexual. Lais declined to give her the naval ciphers but gave her the name of the cipher clerk in the Italian Embassy who had access to the ciphers. She met the clerk, posing as a reporter interested in writing a story about him. After several interviews, she persuaded him to give her the naval ciphers in exchange for a small amount of money. The naval ciphers enabled the British to decode Italian messages and may have helped them win a decisive encounter with the Italian navy at the
Battle of Cape Matapan on March 28, 1941. In 1967, however, the Admiral's heirs sued British author,
H. Montgomery Hyde, in an Italian court for defamation, insisting that Hyde's claim that Lais (who had died in 1951) betrayed military secrets was false. In 1988, Lais' two sons protested publication of the seduction account in
David Brinkley's best-selling
Washington Goes to War and persuaded the Italian defense ministry to publish denial ads in three leading
East Coast newspapers. This debunks Hyde's opinion that the codebook Pack obtained from the cipher clerk was a factor in the Italian defeat.
Vichy ciphers Germany defeated France in 1940. The armistice agreement permitted a collaborationist French state called
Vichy to remain unoccupied by the German military and retain some characteristics of independence, such as an embassy in Washington, D.C.. Pack was now working for both the BSC and the American
Office of Strategic Services (OSS). Pack was given the job of penetrating the Vichy embassy. Posing as a pro-Vichy journalist, Pack made an appointment to see the press attaché, a much married
World War I fighter ace named Charles Emmanuel Brousse and quickly seduced him. Two months into their affair, in July 1941, Brousse's position at the Embassy was eliminated and he was offered a lesser position at one-half the salary. Pack offered him money for collaboration appealing to his desire for a restored France freed from German control. Brousse accepted and began passing secret documents to Pack. In March 1942, Pack was given what seemed the impossible task of obtaining the Vichy naval code books from the Embassy. The code books were locked up in a safe to which Brousse did not have access. After several false starts, Pack made friends with the night guard of the Embassy. Brousse and she then bribed the night guard to allow their access to the Embassy at night to have sex. One night, the three of them shared a drink and they drugged the guard. While he was asleep, they smuggled a
safe-cracker into the Embassy and he discovered the combination of the safe. However, time was too short to take, copy, and return the cipher books. A few days later, on 24 June, 1942, Brousse and Pack returned to the Embassy at night ostensibly to have sex again. When the guard made his rounds, he found them both naked (a deliberate ploy for credibility by Pack), apologized for his intrusion, and left them alone for the remainder of the night. The safecracker climbed a ladder into the Embassy, opened the safe, took the cipher books away to be photographed, and returned them to the vault before daybreak. Pack and Brousse then departed the embassy as happy lovers. The cipher books enabled the OSS to decipher the Vichy navy's communications. The intelligence gleaned from the Vichy intercepts helped the Americans succeed in the
invasion of Vichy North Africa in November 1942.
FBI Surveillance Throughout her work in Washington, Pack was under surveillance by the FBI as she was suspected of being a foreign agent which in fact she was, working for the British BSC as well as the American OSS. An FBI memo of August 20, 1942, also mentions that the
Military Intelligence Service had an interest in her "fishy" activities. Affirmations from the British and American spy agencies that Pack was an agent of theirs did not halt the FBI's interest in monitoring her activities. == Later life ==