I was reading on a new Chinese company called "UnderMartian" which seems to be openly ripping off of UnderArmour and not even trying to hide it. UnderArmour has stated they will attempt to pursue all "legal action" possible, which has raised my question.
Since this is a company in a different country, to what extent is even possible for UnderArmour to enforce or bring legal recourse to UnderMartian? Can a United States (I believe it is) company even have the right to say what China can/can't do in terms of copyright? If so, then what about Didi Kuadi (the Uber competitor) in China, TanTan (the Chinese Tinder) and companies related do and why have they not attempted legal action (though I can understand that these are a far more stretch).