European arms imports rose 155% in 2020-24 and Ukraine has become the world's biggest arms importer following Russia's 2022 invasion, according to a report released by a leading conflict think tank on Monday. Data from the Stockholm International Peace Research Institute (SIPRI) showed the United States continued to dominate the global stage, with U.S. companies increasing their share of global arms exports to 43% in 2020-24, from 35% in the 2015-2019 period. U.S. arms exports amounted to about the same share of the global market as the next eight countries combined.