Log in to get started!

Don't have an account yet? You can create one below.

Student Instructor
illustration of ship exploding

Explosion of the USS Maine in 1898

This pop-up case is part of the series: U.S. History Series


After the mysterious explosion of the USS Maine in Havana, Cuba, the United States has decided to go to war with Spain. President William McKinley and his advisors now need to decide how to intervene against Spanish colonial rule in Cuba and what U.S. war aims should be. 

Students will understand that war strategy stems in part from war aims. 

Students will understand that intervention inevitably shapes future relations with a country.

The Situation

By the 1870s, tensions between the United States and Spain were growing. Once a vast empire, Spain had lost much of its overseas territory over the nineteenth century, leaving Cuba as one of its last remaining footholds in the Western Hemisphere. But Madrid's grasp had begun to slip there as well. Starting in 1868, Cubans waged three successive liberation wars, culminating in the 1895 Cuban War of Independence. Spanish forces acted harshly to suppress the Cuban rebellion, including by forcibly relocating hundreds of thousands of Cuban civilians to concentration camps and practicing scorched-earth tactics to starve the rebels of supplies. More than two hundred thousand Cuban civilians died as a result of this reconcentration policy. U.S. journalists brought the story of Cuban liberation to American readers, stoking widespread sympathy for the Cuban cause and outrage toward the Spanish empire. As the war dragged on, public outrage began to spur calls for U.S intervention on behalf of the Cubans. 

Although public interest in Cuba was mainly humanitarian, the United States had economic interests in the island as well. In the wake of a massive depression in 1873, the United States sought economic opportunities to aid recovery. Spain’s waning power in Cuba gave U.S. businesses a chance to invest there, particularly in the island’s sugar and tobacco industries. Consequently, the U.S. and Cuban economies grew increasingly interconnected. By the 1890s, U.S. investments in Cuba amounted to roughly $50 million, and nearly 95 percent of Cuban sugar exports went to the United States. Some Americans feared that continued Cuban imports would hurt certain domestic producers. However, most U.S. policymakers were more concerned that instability in Cuba would endanger U.S. investments and harm the overall U.S. economy. Intervention, therefore, offered an opportunity to protect U.S. economic interests and strengthen ties with a newly independent Cuba by aiding in the defeat of Spanish forces.  

Policymakers also had strategic interests in Cuba, particularly as the United States looked to expand its influence in the Western Hemisphere. Cuba presented a strategically valuable location for a naval outpost. An expanded U.S. naval presence in the Caribbean could protect regional trade and aid U.S. efforts to develop a canal through Nicaragua or Panama to connect trade routes in the Atlantic and Pacific oceans. Spanish domination over Cuba, though, curtailed the United States’ ability to advance its political and strategic ties with Cuba. Some policymakers hoped that the removal of Spanish control in Cuba could enable a long-term U.S. presence in the region. Others, however, worried that intervention in Cuba was not worthwhile. In addition to the immense cost of a war, the United States had no way to ensure that intervention would lead to an independent Cuba friendly to U.S. interests. Policymakers, therefore, needed to consider how to prioritize various U.S. interests to determine how Washington’s relationship with a newly independent Havana would look. 

Decision Point: Set in April 1898

The USS Maine—an American battleship sent to protect U.S. interests in Cuba—has exploded in Havana Harbor, killing 260 American sailors. Although the source of the explosion is unknown, the blast has sparked a media frenzy as U.S. observers accuse Spain of orchestrating the incident and demand retribution. Diplomatic efforts with Spain following the explosion have failed, and public fury is growing, leading the William McKinley administration to conclude that intervention in Cuba is now inevitable. Congress has approved the intervention, with an amendment forbidding any U.S. attempt to annex Cuba. With the United States on the path to war, President McKinley has convened his cabinet to determine what the United States’ aims should be and how best to pursue them. Policymakers will need to consider and prioritize the varying U.S. interests in Cuba and weigh the costs and benefits of pursuing those interests. 

Cabinet members should consider any combination of the following policy options:

  • Intervene for humanitarian purposes by aiding the Cuban resistance unconditionally to force Spanish withdrawal. This option most directly appeals to U.S. public sentiment and would be favorable to the Cuban resistance, but it forgoes opportunities to secure advantageous economic arrangements and advance strategic naval expansion in the region.  

  • Intervene for economic purposes by deploying forces to protect U.S. investments and aiding Cuban forces in the hope of cultivating a favorable postwar trade relationship and continued U.S. investment in Cuba. This option would protect U.S. economic interests in Cuba but could face opposition from competing U.S. industries. Additionally, the United States cannot guarantee that Cuban independence leaders will desire economic ties with the United States.

  • Intervene for strategic purposes by strongly supporting Cuban forces in the hope that Cuban leaders will be favorably disposed to allow a U.S. naval base on the island. Control of a Cuban harbor would allow the United States to project power throughout the Caribbean and facilitate the construction of a canal through Central America to expand trade. However, garnering the goodwill necessary to achieve this outcome is not guaranteed and could require more robust involvement in the war than other options. 

  • Take limited action in retaliation for Spain’s suspected involvement in the USS Maine explosion by launching one or more isolated attacks on Spanish forces. This option would not aid Cuba or expand U.S. economic or strategic interests but would signal U.S. focus on preserving domestic interests and appease public desire for retribution against Spain. 

More Pop-Up Cases

Illustration picture of Tiktok with U.S. and Chinese flags

U.S. politicians have raised alarm that TikTok, a popular video-sharing social media app owned by the Chinese company, threatens U.S. national security. Should the United States impose a ban on TikTok to safeguard citizens’ data and the country’s security?

A U.N. chemical weapons expert, wearing a gas mask, holds a plastic bag containing samples from one of the sites of an alleged chemical weapons attack in Syria.

In 2013, reports emerged that Syria’s President Bashar al-Assad had deployed chemical gas as a weapon in Ghouta, Syria, during the country’s ongoing civil war. Months prior, U.S. President Barack Obama had referred to this type of attack as a “red line” that, if crossed, would move the United States to act militarily. The United States now had a choice: whether to uphold its word and respond with military action at the risk of escalating a violent conflict.

Inmates shadows at a prison

Two American citizens have been unjustly detained abroad, and although one was returned, another remains in Russia. The United States needs to decide what action to take when an American citizen’s life is swept up in a geopolitical conflict.


Do you find pop-up cases helpful?

We are looking for feedback from instructors!

If you have used a pop-up case in the classroom, please fill out our pop-up case survey or email us at [email protected] and let us know how it went. And be sure to follow us on Twitter at @Model_Diplomacy to hear about our most recent pop-up cases the moment they come out.

For Instructors

Pop-Up Case Guidelines View the Pop-Up Case Guidelines for some inspiration for how to structure your conversation.

Classroom handouts

PDF / 2.22 MB