Lieutenant General Leslie Richard Groves Jr. was a renowned and highly accomplished United States Army Corps of Engineers officer, celebrated for his exceptional leadership and technical expertise, which enabled him to successfully oversee the construction of the Pentagon, a monumental and iconic government building in Arlington, Virginia, designed by the esteemed architect George Bergstrom and completed in 1943, a testament to his remarkable ability to manage complex projects and bring them to fruition.
Lieutenant General Leslie Richard Groves Jr.'s impressive array of accomplishments in the fields of engineering and architecture took a dramatic turn with his involvement in one of the most pivotal and enigmatic research endeavors of the modern era, the Manhattan Project, a clandestine initiative undertaken by the United States during the tumultuous period of World War II to develop the atomic bomb, a revolutionary innovation that would have a profound and lasting impact on the trajectory of human history.