Here’s a glance at its social, economic, and cultural legacies:
Social:

-Demographic Shifts: This includes loss of lives, people being forced to flee their homes and a shifted family make up.
-Social and Political Changes: Labour market integration of women, mobility, and new social movements.
-Trauma and Psychological Impact: Remorse, self-blame, and guilt, fear, nervousness, sleep and eating disorders, nightmares, vulnerability to illness, gambling, alcoholism, and drug dependency.
Economic:

-Waste and Rebuilding: It incurred infrastructure and economy loses in Europe and Asia. This, in turn, called for enormous reconstruction processes that consequently led to the development of economic activities.
-America Emerges Stronger: It made the US as the epitome of being an economic and a military world’s super power befitting all other powers for victory.
-Economic Power Shift: The war set a great deal to European colonial powers while the new economic giants including the United States emerged from the injury.
Cultural :

-Anti-War Sentiment: The horrors that the war brought forward stimulated an oppose to war sentiment and the desire for world unity.
-Human Rights Movement: Crimes against humanity such as holocaust led to the diversification and the general promotion of human rights and crusade against discrimination.
-Technological Advancements: It speeded up the development of various technologies like aviation, nuclear physics and computing which were long term in their implications.

Regional Variations:

-Europe: Knew a lot about devastation but also saw how people and countries came back to life – literally and economically – and how they can merge through organizations like the EU.
-Asia: Thus, with the exception of Japan most of the Asian countries emerged to independence, but rebuilding and coping from the trauma of the war.
-Africa: The war played a part in effectively the dissolution of colonialism, however after winning most African nations which had gained their independence had numerous challenges in the construction of the positive and successful societies.

Still, World War II influences today people’s impact on international relations and their organization, forms of social and political activity, and world conscience.