Arms race
IR is called an "arms race".
Interspecific competition.
Competition between teams from different schools is called intermural sports and competition between teams from the same school is called intramural sports.
The international competition amongst countries is called the FIFA World Cup The international competition amongst clubs is called the FIFA Club World Cup
Competition.
nuclear arms race.
Knight competitions were called tourneys. Various specific aspects of competition had different names, but the most famous was called jousting.
Competition.
Competition.
When competition occurs between species, the stronger species remain. This process is called: natural selection.
Competition.If the competition occurs between individuals of the same species it is called intraspecific competition.If the competition is between individuals of different species it is called interspecific competition.
Competition: intraspecifically (between members of the same species) or interspecifically (between members of different species).