01/01 Mon. Tenth Naval District with headquarters in San Juan, P. R., is established. 01/02 Tue. Charles Edison, of New Jersey becomes Secretary of the Navy; Mr. Edison has been Acting Secretary since the death of Claude A. Swanson, 7 July 1939. 01/06 Sat. Adm. J. O. Richardson relieves Adm. C. C. Bloch as Commander in Chief United States Fleet. 01/20 Sat. United States protests delay of American shipping at Gibraltar. 01/23 Tue. Great Britain and France announce they will attack any German vessels encountered in Pan-American Safety Zone. 01/26 Fri. United State-Japanese Trade Treaty of 1911 expires.