Xenophobia is an intense and irrational dislike for people in other countries.
People who spread this hate crime is most likely one to manipulate the individuals in his/her country to support his/her own great cause.
For Example, Kim Jong-IL, the ex-supreme leader of north Korea, caused a massive Xenophobia on his people towards Americans and South Korean. He put the story in children's text books on how the Americans and South Korean are the incarnation of devils, or how we're cannibals who eat human meat