After retiring from the presidency in March 1797, Washington returned to Mount Vernon with a profound sense of relief. He devoted much time to his plantations and other business interests, including his distillery which produced its first batch of spirits in February 1797. As Chernow explains, his plantation operations were at best marginally profitable. The lands out west yielded little income because they were under attack by Indians and the squatters living there refused to pay him rent. Most Americans assumed he was rich because of the well-known "glorified façade of wealth and grandeur" at Mount Vernon. Historians estimate his estate was worth about $1 million in 1799 dollars, equivalent to about $18 million in 2009 purchasing power. By 1798, relations with France had deteriorated to the point that war seemed imminent, and on July 4, 1798, President Adams offered Washington a commission as lieutenant general and Commander-in-chief of the armies raised or to be raised for service in a prospective war. He reluctantly accepted, and served as the senior officer of the United States Army between July 13, 1798, and December 14, 1799. He participated in the planning for a Provisional Army to meet any emergency that might arise, but avoided involvement in details as much as possible; he delegated most of the work, including leadership of the army, to Hamilton