This market will resolve to "Yes" if the United States officially annexes any territory by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." Annexation is defined as an official declaration or legal act by the US government claiming sovereignty over territory they were not claiming at the time of this market's creation. Qualifying examples of annexation include the Louisiana Purchase, however instances where settlers claim administrative control over land without a formal annexation will not count. The primary resolution source for this market will be official information from the US government; however, a consensus of credible reporting may also be used.