The NationWars is a worldwide team league organized by O'Gaming TV. In it, players represent their nations instead of their professional teams.
In each competition of NationWars, a number of countries are selected to participate in the tournament. Players are able to sign up to represent their country and the community votes to select each country's 3 players. As of season 2, the top 4 teams are invited to an offline finals in Paris.
Matches are a best of 7, All-Kill Format. Each team chooses a starting player in advance to compete in the opening game. When a player loses a game they are eliminated and the team chooses a new player to represent them next. The winner continues on to the next game. The fourth and final player chosen by a team is often referred to as the "ace", since the team's survival rests on their shoulders. The ace is a player who has lost before and has been "revived".
Maps are predetermined.
|NationWars I||2014-01-17 - 2014-01-19||8||Norway||Russia||4-1|
|NationWars II||2014-05-07 - 2014-07-26||16||Norway||Mexico||4-2|
|NationWars II Norway vs Korea||2014-09-07||2||South Korea||Norway||5-3|
|NationWars III||2015-11-19 - 2016-01-03||16||France||South Korea||5-0|
|StarCraft II: NationWars IV||2016-12-21 - 2017-01-21||16||South Korea||Poland||5-4|
|StarCraft II: NationWars V||2018-03-21 - 2018-04-22||16||South Korea||Netherlands||5-3|
|StarCraft II: NationWars 2019||2019-09-30 - 2019-12-08||24||Finland||South Korea||5-3|