This market seeks to predict whether the United States will send active-duty ground combat troops to Ukraine as part of an official deployment at any point on or before December 31, 2024. For this market, 'ground combat troops' refers to military personnel sent with the intention of engaging in or supporting direct ground combat operations. The deployment must be confirmed by an official statement from the US Department of Defense or verified by at least two reputable international news organizations. Non-combat personnel, trainers, advisors, or special forces not intended for open engagement are not considered under this definition. The resolution of this market will be based on credible documentation of such a deployment occurring by the specified date.