It is theoretically possible that world socialism could help to reduce the frequency and severity of wars, but it is not a guarantee. There are a number of reasons why this might be the case.
Reduced competition for resources
One of the main causes of war is competition for resources, such as oil, land, and water. Under a socialist system, there would be less incentive for countries to compete for these resources, as they would be owned and controlled by the people, not by private corporations. This could help to reduce the likelihood of conflict.
Increased cooperation and diplomacy
Socialism also promotes cooperation and diplomacy, as countries would have a shared interest in working together to solve common problems. This could lead to a more peaceful world order.
Focus on human needs, not profits
Under capitalism, the primary goal of businesses is to make a profit. This can sometimes lead to unethical behavior and exploitation, which can contribute to conflict. In a socialist system, businesses would be focused on meeting the needs of the people, not on making a profit. This could help to create a more just and equitable world, which would be less prone to violence.
Elimination of class conflict
Socialism also aims to eliminate class conflict, which is another major cause of war. In a classless society, there would be no incentive for the ruling class to exploit and oppress the working class, which could help to reduce the likelihood of violence.
However, there are also some challenges that would need to be overcome in order for world socialism to achieve these goals.
Difficulties in implementation
Socialism is a complex economic system that would be difficult to implement on a global scale. There would need to be a high level of trust and cooperation among countries in order to make it work.
Resistance from powerful interests
The wealthy and powerful would likely resist any attempt to implement socialism, as it would threaten their interests. This could lead to conflict and instability.
Lack of consensus on the best way to implement socialism
There is no single, agreed-upon definition of socialism, and there are many different schools of thought on how to implement it. This could lead to disagreements and conflicts among socialists.
Overall, it is possible that world socialism could help to reduce the frequency and severity of wars, but it is not a guarantee. There are a number of challenges that would need to be overcome in order for it to be successful.