Brazilian President Luiz Inacio Lula da Silva (L) and French President Emmanuel Macron shake hands during the launching of the Tonelero submarine at the Itaguai naval base in Itagui, Rio de Janeiro State, Brazil, on March 27, 2024. President Emmanuel Macron said Wednesday that France would help Brazil develop nuclear propulsion on its future submarines, crucial assistance which has been a sensitive topic between the two nations. (Photo by Pablo PORCIUNCULA / AFP)