They said that it is not right to separate children because of there race and nothing else, such as abilities and intelligence level.
A landmark case is a court case that is studied because it has historical and legal significance. The most significant cases are those that have had a lasting effect on the application of a certain law, often concerning your individual rights and liberties.
One negative impact would be people or citizens of the Panama would dislike that Indigenous people can come over into the Panama and the trading would extend until free trade without quotas or tariffs.
The British weapons were superior because they had more advanced technology than the Americans had been exposed too.