How and why was art created before World War 1 different from art created after World War 1?

Before World War I, art was largely characterized by movements such as Impressionism, Post-Impressionism, and Symbolism, focusing on aesthetics, representation, and emotional expression. However, the war profoundly impacted artists, leading to the emergence of modernist movements like Dadaism and Surrealism, which reflected disillusionment, trauma, and a questioning of traditional values. Post-war art often embraced abstraction and experimentation, as artists sought to challenge conventions and explore new forms of expression in response to the chaos and uncertainty of the time. This shift marked a significant departure from the previous emphasis on beauty and representation.