Answer:
During spanish war
Explanation:
Military operations. Hitler decided to support the Nationalists in July 1936. The German air force was used to carry the Army of Africa to Spain. A Spanish-German Spanish–Moroccan Transport Company (HISMA) and an entirely German company, the "Raw Materials and Goods Purchasing Company" (ROWAK) were established.
First Indian war, Great Narragansett war, or Metacoms Rebellion are all the names this war is known as.
So based on that, and my deductive reasoning super power it’s going to be more than likely that it’s the First Indian war
Julius and Ethel Rosenberg were Jewish American citizens who were convicted, with others, of conspiracy for espionage on behalf of the Soviet Union in the late 1940s, when it was an ally of the United States during World War II. They were tried, convicted, and executed by the federal government of the United States.
It happened after ww1 and was influenced those from the war. The war had people see more violently and thus this art appears more of less like dada are but more violent.
Hope it helped.