Responses to the Trump tariffs, which have gone into effect today on June 1st, may have negative consequences on U.S. industries, including defense exports. Fears of a trade war have escalated as Europe, Canada, and Mexico have suggested retaliatory measures. Stock prices of the “big five” defense firms slipped slightly amidst a 200-point drop in the Dow Jones industrial average.

Source: US defense sector braces for Trump tariff fallout