World War 1 led to immense loss of life, creating a "lost generation" and significant demographic imbalances, particularly among young men. The war also transformed gender roles, as women entered

World War 1 led to immense loss of life, creating a "lost generation" and significant demographic imbalances, particularly among young men. The war also transformed gender roles, as women entered the workforce in unprecedented numbers, contributing to later movements for women's suffrage and greater social independence. Furthermore, it caused widespread psychological trauma and disillusionment, leading to new approaches in mental health and a questioning of traditional values.