
In late July, forces from the three services stationed at Mount Pleasant Complex in the Falkland Islands — headquarters of British Forces South Atlantic Islands (BFSAI) — took part in a series of military exercises designed to demonstrate their speed of response and operational integration, under the banner of the deployment's name, South Atlantic Sentinel.

Navitas Petroleum has signed agreements to obtain a 33.33% interest in the Tiberius and Logan oil discoveries in the Gulf of America (Gulf of Mexico) from Occidental and Kosmos Energy, expanding its Gulf of America hydrocarbon portfolio.

Argentina on July 17 enacted the law approving its accession to the Port State Measures Agreement (PSMA) of the United Nations Food and Agriculture Organization (FAO), a significant step for fisheries governance in the southwest Atlantic. The treaty, in force since 2016, is the only binding international instrument specifically designed to combat illegal, unreported and unregulated (IUU) fishing.

The South Atlantic Environmental Research Institute (SAERI) has secured funding for a series of new scientific projects aimed at strengthening environmental monitoring, conservation science and evidence-based management across the Falklands and the wider South Atlantic.

An opposition lawmaker has filed a criminal complaint against President Javier Milei and four current and former government officials for authorizing, by decree, the entry of US troops that took part in military exercises on Argentine soil without congressional approval.

An international investigation published by the Spanish newspaper El Confidencial, with an extensive interactive report, describes how the expansion of Asian fishing fleets in international waters —mainly Chinese— has transformed the global market for frozen squid, with a direct impact on the European fleet and consequences for fishing in the South Atlantic, one of the main sources of income for the Falklands.

Foreign fleets operating along the outer edge of Argentina's Exclusive Economic Zone (EEZ) —the so-called Mile 201— extract up to four times the volume caught by the entire national fishing industry, according to a report by the Latin American Foundation for Fisheries Sustainability (FULASP) released on the International Day for the Fight against Illegal, Unreported and Unregulated Fishing. The organization called the activity one of the main threats to the fishery resources of the South-West Atlantic.

Javier Milei's government on Wednesday announced the signing of a letter of intent with the United States for joint patrolling of the South Atlantic over the next five years, in a military cooperation agreement that ratifies Buenos Aires's strategic alignment with the Donald Trump administration and that has triggered alarms over Argentine sovereignty in its maritime spaces. The agreement, signed by the US Southern Command and Argentine Navy authorities, involves the supply of US technology to modernize the South American country's naval equipment and, at the same time, authorizes the participation of US forces in patrolling the Argentine southern sea.

Argentina’s Federal Fisheries Council (CFP) recorded that it had “no objections,” within its remit, to a United States request for a marine scientific research cruise by the R/V Roger Revelle inside Argentina’s Exclusive Economic Zone between March 5 and March 30, 2026. In the same document, the council asked for “all basic data” plus “preliminary and final reports” to be submitted to Argentine authorities prior to any publication of results.

A new study has reconstructed the evolution of the planet’s strongest nonhydrostatic geoid depression —the Antarctic Geoid Low (AGL)— finding that the feature has persisted for at least 70 million years and underwent a major shift in both position and strength between roughly 50 and 30 million years ago.