The June 2018 cartoon by Steve Sack shows President Donald Trump in a submarine periscope view ordering a torpedo fired at a cargo ship labeled TRADE after being told it belongs to an ally. The image responds to Trump's steel and aluminum tariffs imposed on Canada, the European Union and other trading partners that month. Those tariffs disrupted longstanding alliances and prompted retaliatory measures while negotiations over NAFTA continued. The visual frames the policy as self-inflicted damage to friendly commerce.