The Indo-Pacific theater has emerged as the epicenter of global geopolitical competition, with submarines and sea control taking center stage. Today marks the beginning of a new era for multinational maritime cooperation as RIMPAC 2026 kicks off, but China’s growing nuclear arsenal serves as a stark reminder that great power rivalry is heating up beneath the waves.
The Indo-Pacific Showdown
RIMPAC 2026, the world’s largest international maritime exercise, kicked off today with an unprecedented number of participants. This year’s iteration emphasizes submarines and anti-submarine warfare aircraft, reflecting the growing importance of underwater dominance in a region where China’s assertiveness has forced nations to reassess their defense strategies.
The biennial exercise, held off the coast of Hawaii, brings together 32 countries—including Australia, Japan, South Korea, India, and several European nations—in a collective effort to strengthen maritime cooperation. The U.S. Navy alone will deploy more than 20 ships and submarines, alongside over 150 aircraft and approximately 25,000 personnel.
In the past month, submarines have been a hot topic in the Indo-Pacific. Last week, Poland placed an order for three Saab A26 submarines, bolstering its underwater capabilities against potential Russian aggression. This deal follows similar purchases by Sweden and Australia, signaling a trend towards increased submarine procurement across the region.
China’s Nuclear Ambitions
While RIMPAC underscores Western unity, China continues to expand its long-range nuclear missile arsenal at an alarming pace. The Diplomat reports that Beijing is modernizing its ballistic missile forces with road-mobile, solid-fuel missiles—a strategic shift that poses significant challenges to U.S. and allied interests in the region.
China’s People’s Liberation Army Rocket Force (PLARF) is fielding a growing number of these advanced missiles, which are harder to detect and destroy than their liquid-fueled counterparts. This modernization effort follows a decades-long lull in China’s nuclear weapons development, raising concerns about Beijing’s intentions and the potential for an arms race in the Indo-Pacific.
Today also saw reports that the U.S. Navy has redirected commercial vessels away from the Middle East—a move that could signal increased tensions in the region. With Iran’s proxies continuing to target merchant shipping, the U.S. appears to be taking steps to protect vital trade routes while maintaining its naval blockade of the strait.
Setbacks and Threats
The Air Force One program has hit another snag, with Boeing incurring a $280 million loss on the VC-25B project—a program that is now years behind schedule and over budget. The latest setback comes as Qatar gifted a VC-25B “Bridge” jet to the U.S., which will undergo upgrades before entering service.
Wildfires raging in France threaten defense-industrial sites, including ArianeGroup’s M51 missile propulsion components production facility and Dassault Aviation’s Rafale fighter jet assembly line. These disruptions could impact Europe’s ability to maintain its defense industrial base and fulfill critical contracts, such as the French Navy’s upcoming FDI frigate program.
What Else Moved
In other news, India successfully tested its new indigenous Long-Range Surface-to-Air Missile (LRSAM), a significant milestone in New Delhi’s quest for strategic autonomy. Meanwhile, the U.S. Navy has been directed by Congress to overhaul its torpedo inventories to support a two-war strategy—a move that underscores Washington’s commitment to maintaining global naval supremacy.
Forwards Look
As RIMPAC 2026 continues, watch for further developments in multinational maritime cooperation and underwater warfare capabilities. With China’s growing nuclear arsenal casting a long shadow over the Indo-Pacific, nations will be keen to strengthen their defense ties and collective deterrence efforts. The coming weeks will also see the launch of a bilateral artificial intelligence task force between U.S. Central Command (CENTCOM) and the United Arab Emirates (UAE)—a partnership that could prove pivotal in countering shared threats in the Middle East.