What was the british army called in 1939?

In 1939, the British Army was commonly referred to simply as the "British Army." It was the land warfare force of the United Kingdom, comprising regular, reserve, and territorial units. At that time, it was preparing for the impending conflict of World War II, which began in September 1939. The army played a crucial role in various campaigns throughout the war, evolving in structure and strategy as the conflict progressed.