The trilateral AUKUS program aims to develop nuclear-powered submarines for the UK and Australia, expected to be operational by the mid-2030s, granting Australia access to an exclusive club of nations with such advanced naval capabilities.
Only six nations – the U.S., the UK, France, Russia, China, and India – operate nuclear-powered submarines, which are among the most advanced naval platforms. The boats offer nearly unlimited endurance, can stay submerged for weeks and even months at a time, and travel underwater at high speeds.
Even with the AUKUS effort well underway, Australia might not be the next nation to develop a nuclear-powered submarine. The Brazilian Navy is likely to get there first.
In March, French President Emmanuel Macron announced that France would aid Brazil in developing nuclear technology, specifically their propulsion systems.
“I want us to open the chapter for new submarines … that we look nuclear propulsion in the face while being perfectly respectful of all non-proliferation commitments,” Macron said at the launch of a conventionally powered French-Brazilian submarine near Rio de Janeiro, Le Monde reported. “You want it, France will be at your side.”
Brazilian President Luiz Inacio “Lula” da Silva, who also attended the ceremony, initiated the submarine program in 2008 during his previous term in office.
French military contractor Naval Group has helped with the design and construction of the future nuclear-powered submarine – to be named Álvaro Alberto – while the nuclear boiler, a crucial component of the propulsion system, is being indigenously developed.
Just this month, the Brazilian Navy announced that the first steel was cut for the submarine’s hull, a milestone that marks the first step in the production process.
A New Submarine Powerhouse
Brazil’s Submarine Development Program (PROSUB) has been a long time coming.
PROSUB called for the modernization of the South American nation’s aging submarine force, and it has already seen the successful completion of multiple conventionally powered subs, including Riachuelo (S40), Humaitá (S41), and Tonelero (S42), while Angostura (S43) is now under construction and set to be launched in 2025.
While its diesel-electric submarine fleet has grown, progress on Álvaro Alberto has been slow. As a result, Brasília has called for Paris to increase the transfer of technology to integrate the reactor into the submarine – and for the French to sell it equipment linked to nuclear propulsion.
Brasília wants to grow its navy in order to help protect its 8,500 kilometer-long (5,280 mile-long) coastline, known as the “Blue Amazon,” its exclusive economic zone (EEZ). More than 95% of Brazil’s foreign trade passes through its EEZ, and this is where it extracts 85% of its oil and 75% of its natural gas. A modern navy is seen as essential to the coastal zone’s security.
