Japanese Prime Minister Sanae Takaichi signed agreements with Vietnamese Prime Minister Le Minh Hung to deepen cooperation on energy, critical minerals, artificial intelligence, semiconductors and space during the former's visit to Hanoi, Reuters reported on May 2. Separately, Japan signed an agreement with Indonesia on defense industrial cooperation, covering a formalized pipeline for arms sales, personnel development and disaster mitigation, while also discussing maritime security and joint exercises, Reuters reported on May 4.