North Expedition was the first war in R.O.C. history that started from the southern Pearl River basin area and toward the north for the unification of the whole country. At the beginning of the war, President Chiang Kai-Shek against the warlords who had military forces almost ten folds of his. But he still managed to complete the unification of the nation within two and half years. This was truly a very impressive achievement. This year is the 80 anniversary of the north expedition, he strategies in these battles were very meaningful and also worthwhile for us.