Settlers were constantly taking more land than either they agreed for, or just what didnt belong to them, the Indians would fight back and lose in the end, they would shrink back and find more land, there would be peace for a little while, and then settlers would keep wanting more land
Answer:
The correct answer is the first one.
The first world war placed an unbearable strain on Russia's weak government and economy, resulting in mass shortages and hunger. In the meantime, the mismanagement and failures of the war turned the people and soldiers against the Tsar whose decision to take personal command of the army seemed to make him personally responsible for the defeats. In March 1917, the Tsar first lost control of the streets, then the soldiers, and finally of the Duma, resulting in his forced abdication on March 15th, 1917.
Most famously, blitzkrieg describes the successful tactics used by Nazi Germany in the early years of World War II, as German forces swept through Poland, Norway, Belgium, Holland and France with astonishing speed and force.