The heads of Australia, the United States, and the United Kingdom have vowed to cooperate on the development of hypersonic weapons as the three nations push to advance the trilateral AUKUS agreement amid increasing tensions in the Indo-Pacific region. On April 6, U.S. President Joe Biden and Prime Ministers Scott Morrison (Australia) and Boris Johnson (UK) released a joint statement outlining the progress of the AUKUS agreement thus far, including cooperation on establishing a nuclear-powered submarine fleet in Australia. “In light of Russia’s unprovoked, unjustified, and unlawful invasion of Ukraine, we reiterated our unwavering commitment to an international system that respects human rights, the rule of law, and the peaceful resolution of disputes free from coercion,” the leaders said in the statement. “We also committed today to commence new trilateral cooperation on hypersonics and counter-hypersonics, and electronic warfare capabilities, as well as to expand information sharing and to deepen cooperation on …