Which situation describes two individuals who must have a different point of view about an issue

One situation that could describe it is . One citizen supports a war, while another joins a protest against it. 
Clash between these two supporters tend to based on two very different appoach in handling conflicts with another social groups.
The supporter of the war tend to take a defensive approach in order to eliminate threats that faced by their social group while the one that against the war tend to prefer mediating approach to solve problems.
Each of these views tend to have their own merit.