Geopolitical Alert! US Challenges China in Latin America with Military Moves

In late 2025, the Chinese People’s Liberation Army Navy (PLAN) launched a tour across Latin America and the Caribbean with a military hospital ship, seeking to project power and influence. However, the initiative, known as the 'Silk Road Ark,' proved to be a significant setback, as only six out of 33 countries in the region welcomed the ship. This limited support underscores the growing geopolitical tensions in the region and the caution of some Latin American countries regarding the expansion of Chinese influence.

The lack of enthusiasm from most Latin American countries suggests a concern about the security and sovereignty implications that a greater Chinese military presence in the region could entail. The situation highlights the competition between China and the United States for influence in Latin America, where the latter has traditionally been the dominant player.

In December, Beijing released its third policy paper on Latin America, where it expresses its intention to "actively carry out military exchanges and cooperation," "expand friendly exchanges between leading defense and military officials," and "strengthen political dialogue and establish working meeting mechanisms" with Latin American nations. The document also notes the goal of "conducting mutual visits between delegations and vessels, deepening professional exchanges in fields such as military training," and "enhancing cooperation in military trade and military technology."

Despite these ambitions, the reality shows that very few countries opened their doors to the Chinese military vessel, reflecting a widespread caution regarding China's growing military presence in the region. This reluctance can be attributed to concerns about national sovereignty, geopolitical influence, and potential implications for regional security.

Brazil was the only Latin American country to welcome the communist military ship with open arms and without reservations. In Rio de Janeiro, military members of the naval forces of both countries conducted a joint maritime search and rescue exercise. China also demonstrated a combat and rescue operation. However, authorities from the Regional Council of Medicine of the State of Rio de Janeiro complained about not being able to inspect the ship or meet with the medical personnel on board.

Brazil's willingness to collaborate with China in joint military exercises contrasts with the caution shown by other countries in the region. This difference may reflect Brazil's specific strategic priorities and bilateral relations with China, as well as its particular approach to regional security.

Last week, the United States launched an unprecedented military tour in Latin America, encompassing the Caribbean, as well as North, Central, and South America. The 'Southern Seas 2026' deployment includes the USS Nimitz, a massive nuclear-powered ship, along with the Arleigh Burke-class guided-missile destroyer, the USS Gridley. The tour includes exercises with Argentina, Brazil, Chile, Colombia, Ecuador, Peru, Mexico, El Salvador, Guatemala, and Uruguay, and comprehensive port visits in Brazil, Chile, Panama, and Jamaica.

This deployment represents a show of force by the United States and a clear signal of its commitment to security and stability in the region. The inclusion of the USS Nimitz, a nuclear aircraft carrier, underscores the military capability of the United States and its willingness to project power in Latin America.

In a recent congressional hearing, General Francis L. Donovan, head of the US Southern Command, presented four imperatives for the new approach in the region: "deny adversary footholds and undue influence in the Western Hemisphere," "strengthen hemispheric command and control," "impose total systemic friction on drug cartels and terrorist networks," and "develop and deploy cost-effective, modernized forces tailored for the mission."

These priorities reflect the concern of the United States regarding the growing influence of external actors, such as China, in Latin America, as well as its commitment to the fight against drug trafficking and terrorism in the region. The strategic approach of the United States seeks to strengthen cooperation with Latin American countries to address these challenges jointly.

On March 7, President Trump announced the Americas Counter Cartel Coalition. In less than a month, much has been achieved. Ecuador carried out strikes against cartel infrastructures, Paraguay signed a new Status of Forces Agreement, and Bolivia, a former coca stronghold, captured the most wanted drug lord in South America.

These actions demonstrate the commitment of the United States to the fight against drug trafficking in Latin America and its willingness to support the countries of the region in their efforts to combat cartels. The Americas Counter Cartel Coalition seeks to strengthen cooperation between the United States and Latin American countries to address this challenge comprehensively.

The tour by Chinese and US warships demonstrates once again that a clear geopolitical, commercial and military battle exists between the two powers — and Beijing is losing it. Although China is the leading trade partner for most South American countries, the U.S. is showing to be, by far, the region’s primary ally in matters of security and the fight against organized crime.

The competition between the United States and China for influence in Latin America is intensifying on multiple fronts, including military, commercial, and diplomatic. The United States seeks to reaffirm its preeminence in the region, while China seeks to expand its presence and economic and political influence.

The new U.S. National Security Strategy clearly outlines this: "After years of neglect, the United States will reassert and enforce the Monroe Doctrine to restore American preeminence in the Western Hemisphere, and to protect our homeland and our access to key geographies throughout the region." The U.S. is determined to deny non-hemispheric competitors, particularly China, the ability to position forces or other threatening capabilities, or to own or control strategically vital assets in the region. A challenging task is still ahead but the U.S. is winning.

The reaffirmation of the Monroe Doctrine by the United States represents a declaration of intent to counter the growing influence of China in Latin America. The United States seeks to maintain its preeminence in the region and prevent China from establishing a military or economic presence that could threaten its interests.