The three met in Belgium and produced the proposal.
It was written in response to Peter Soule's failure to obtain its goal peaceably. Secretary of State William Marcy instructed James Buchanan and John Mason to meet with Soule to discuss the situation. The three met in Belgium and produced the proposal. It was leaked, however, and the Republicans used it to attack the South since it sought to increase the amount of U.S. slave territory. FTP, name this document, which demanded that the United States take Cuba by force.
It was written in response to Peter Soule's failure to obtain its goal peaceably.
Ostend Manifesto