TOKYO (Kyodo) -- U.S. President Donald Trump's 25 percent "reciprocal" tariff on imports from Japan, if imposed, is projected to reduce the Asian nation's gross domestic product by 0.8 percent in 2025, according to a private-sector estimate.

The U.S.’s closest security allies in Asia, along with six Southeast Asian countries, have been given another three weeks to negotiate trade deals — or face higher tariffs.

President Trump provided notice of the tariffs to begin on Aug. 1 by posting letters on Truth Social that were addressed to the leaders of the various countries.