WASHINGTON, United States: US President Donald Trump threatened nations Monday with punishing tariff hikes if they "play games" after his trade policy setback before the Supreme Court -- hours before new duties were set to kick in. "Any Country that wants to 'play games' with the ridiculous supreme court decision, especially those that have 'Ripped Off' the U.S.A. for years, and even decades, will be met with a much higher Tariff, and worse, than that which they just recently agreed to," Trump wrote on social media.

The president signed an executive order implementing 10 percent global tariffs after calling the justices who struck down his signature trade policy a “disgrace.”

Some countries welcome the ruling, while others review trade deals and economic effect.