Japan First!
In what Seoul views as economic retaliation over a previous dispute over wartime forced labour, Tokyo from July 4 started imposing export restrictions on three chemicals crucial to South Korea's booming semiconductor industry - fluorine polyimide, resists and etching gas.
Japan, which controls up to 90 per cent of the global supply of these materials, cited a breach of trust and national security concerns for the measures.
https://www.straitstimes.com/asia/east-asia/south-korea-japan-trade-spat-us-will-do-what-it-can-to-help-but-hopes-both-sides-can
Trade wars are becoming contagious. Few nations hate each other more than Japan and Korea. Once, I was in a high-rank business meeting between the two sides and this hatred was palpable in every word they said and every look they took.