Beginning in 1900, Jewish groups began to run advertisements in the papers saying that 6 million Jews were about to perish! During World War I, they said that the European Jews were suffering more than the rest of the European people! And immediately before and after the Ottoman Empire fell apart, they began to run more frequent advertisements. Those advertisements were meant for the Christians of the West and the message was that unless Palestine was given to them in a hurry that 6 million Jews were facing extermination! It was all about Palestine!
https://tinyurl.Com/Six-million-Jews-1900-1945