Newsweek 's history  Henry Kissinger reminds readers that World War I started not because of ethnic cleansing but because of outsider intervention.
Kissinger believes that WWI started as a cleanse. 
mnli hypothesis: Kissinger believes that WWI started as a cleanse.  premise: Newsweek 's history  Henry Kissinger reminds readers that World War I started not because of ethnic cleansing but because of outsider intervention.