Ultimately, the United States did not intervene militarily in the Ten Year’s War. The Grant administration made attempts to negotiate a peaceful resolution which tolerated Spanish sovereignty and enforced emancipation. These efforts, by and large, failed. As the war approached an end, the Grant administration adopted certain requirements which the United States expected Spain to meet in order to ensure continued American neutrality. Spanish failure to meet these norms formed a part of the rationale for the 1898 Spanish-American War.