International stock markets experienced a decline on Thursday morning after President Donald Trump announced a series of tariffs on U.S. trade partners, including a minimum baseline tariff of 10% on all nations. Asian markets were particularly affected, with Japan’s Nikkei index dropping 4%, Hong Kong’s Hang Seng Index sliding 2.4%, South Korea’s KOSPI falling 2.7%, and Australia’s ASX 200 decreasing by 2%. In the U.S., stock futures also dropped significantly, with Dow Jones futures plummeting 2.7%, S&P 500 futures sinking 3.9%, and NASDAQ 100 futures dropping 4.7%. Trading partners reacted with condemnation and concern. China, facing a 34% tariff, urged the U.S. to cancel its unilateral measures. The European Union, now facing a 20% tariff, announced plans for retaliation. Japan and South Korea also expressed concerns about the impact on their economic relations with the U.S. and the global economy. — new from ABC News