Do these trademarks go international? Isn't King a UK-based company? If they filed for the trademark in the US, do they have separate filings for each country t

Do these trademarks go international? Isn't King a UK-based company? If they filed for the trademark in the US, do they have separate filings for each country that they want to protect "candy"? What if you are an app developer outside the jurisdiction of the trademark? Can you just ignore?