Because nationalism is the love for your country. if you have nationalism, you want to fight for your country.
The President in the executive branch can veto a law, but the legislative branch can override that veto with enough votes. The legislative branch has the power to approve Presidential nominations, control the budget, and can impeach the President and remove him or her from office.
The main difference between the newer and older stone age was that in the newer one, crop growing and domestication of different types of animals was becoming more and more common in different villages or societies. This was not the case in the older stone age.
Answer:
Out group discrimination or in group favouritism is likely to occur because a student at rivalry university or at their university was in the game.