General Orders No. 101: Legal Framework for Military Dictatorship

General Orders No. 101 was issued by the War Department on July 18, 1898, by direction of President William McKinley, following the capitulation of Spanish forces. This order established the legal framework for military governance of territories occupied by U.S. forces, including Puerto Rico.

Under GO 101, the Secretary of War imposed what amounted to a military dictatorship lasting from October 18, 1898 to May 1, 1900. The order empowered military governors to administer all civil affairs with the force of law, issue decrees restructuring local institutions, and prepare occupied territories for territorial annexation.

The three successive military governors—John R. Brooke, Guy V. Henry, and George W. Davis—used these arbitrary powers to issue hundreds of decrees that fundamentally altered Puerto Rico's institutions. The Spanish political system was disbanded. U.S. laws and legal frameworks were imposed, with federal courts given jurisdiction. Universal public education was established with mandatory English-language instruction. The Autonomic Charter of 1897 was nullified. Currency was changed from the peso to the U.S. dollar.

The legal foundation of GO 101 is significant because it treated Puerto Rico as conquered territory—not as a liberated population. The military government ended on April 12, 1900, when Congress enacted the Foraker Act to replace military rule with a civilian territorial government, effective May 1, 1900. But the Foraker Act itself maintained the colonial framework that GO 101 established: Puerto Rico was to be governed by the United States, not by Puerto Ricans.