<h3>The Abdication of Kaiser Wilhelm II</h3>
Wilhelm II abdicated from the throne as emperor of the 2nd Reich.
Weapons in WW1 were being mass produced and of a greater quality than those of wars before. Barbed wire, airplanes, poisonous gas, submarines etc were introduced which revolutionized war today. Trench warfare was countered and is no longer used to fight.
Well, number one is impossible. Great Britain was the first country to industrialize; they started the Industrial Revolution in 1780, with it taking full force in 1840. Japan's industrialization happened with the Meiji Restoration, a full 30 years after the formal beginning of the British industrialization.
2) Literally no one ever conquered Japan. Ask the Mongols- they tried. twice. and failed. twice.
3)Japan only has 20% arable land, so that's not much. And even still, the only country they actually traded with until after their industrialization was the Netherlands.
4) Japan, only a couple hundred miles from China, borrowed many aspect of their culture, which explains why Buddhism played (and still does to an extent) a large role in Japanese society.
So #4 is your answer