Oh yes they have been to many world cups. They even reached the semifinals in 2002.
South Korea have appeared in 8 world cups ,at the same time North Korea have appeared in only 2 world cups.
North Korea has not won any world cups as yet.
Brazil (5 world cups)
The highest number of world cups a soccer team can win is never limited but the most recent world cups a team has won in soccer is 5.
It is Italy with four world cups.
BRazil
the soccer team that holds the world cups title is Italy
zero
Yes Iran does have a soccer team and have played at world cups as well.
Brazil
One