popular events like football World Cup and other international sporting occasians are essential in easing international tensions andand releasing patriotic emotions in a safe way.
You forgot to provide us with the questions of the prompt. Is it an argumentative or a discussion essay?
Eurovision Song Contest
This is irrelevant to the topic.
make people relax
making people relax
in addition people who involving who are involved in these events forget about conflicts between countries
This could form a new sentence. However, I feel that this just repeats the idea in the previous sentence.
they exactly thing think about the result of acting and how to demonstrate their capability and how enjoy people to entertain people, make peoples' life easier .
You can start another new sentence from "They". Again, I don't think this is related to the prompt.
Your introduction has only one lengthy sentence. You can improve it by writing shorter sentences, and trying to answer the questions given in the prompt directly.
Also there are some facts reasons why events like those ones international sporting events are have influence in a positive way
According to tradition there could not be war during the occasion because only men participant in games
This is not clear. The rules of the ancient Olympic Games only allowed men to compete and I don't think this is the reason why international tensions could be eased.
singers
This is irrelevant to the prompt, too.