The nuclear arsenals of several countries, especially China, grew last year, and other atomic powers continued to modernize theirs as geopolitical tensions rise, researchers said.
Three Iraqi soldiers were killed and four others wounded in a pre-dawn attack in the country's north blamed on Islamic State, a military official said.
China has been operating an intelligence unit in Cuba and upgraded it in 2019 to enhance its presence on the Caribbean island, a White House official said.