les ▁and ▁inc idents ▁▁ 1 9 1 2 – 1 9 4 9 ▁▁ ▁Northern ▁Ex ped ition : ▁ 1 9 2 6 – 1 9 2 8 ▁Central ▁Pla ins ▁War : ▁May ▁ 1 9 3 0 ▁– ▁ 4 ▁November ▁ 1 9 3 0 ▁ ▁First ▁Commun ist ▁In sur re ction / P ur ge : ▁ 1 9 2 7 – 1 9 3 7 ▁N anch ang ▁U pr ising : ▁ 1 9 2 7 ▁Aut umn ▁Har vest ▁U pr ising : ▁ 1 9 2 7 ▁X i ' an ▁Inc ident : ▁ 1 2 ▁December ▁ 1 9 3 6 ▁ ▁Second ▁S ino - J apan ese ▁War / World ▁War ▁II : ▁ 1 9 3 7 – 1 9 4 5 ▁Marco ▁Pol o ▁Bridge ▁Inc ident : ▁ 7 ▁July ▁ 1 9 3 7 ▁Battle ▁of ▁Shang hai : ▁ 1 3 ▁August ▁– ▁ 9 ▁November ▁ 1 9 3 7 ▁Battle ▁of ▁Nan j ing : ▁October – Dec ember ▁ 1 9 3 7 ▁Battle ▁of ▁Ta ierz hu ang : ▁ 2 4 ▁March ▁– ▁April ▁ 1 9 3 8 ▁First ▁Battle ▁of ▁Ch ang sha : ▁ 1 7 ▁September ▁– ▁ 6 ▁October ▁ 1 9 3 9 ▁Second ▁Battle ▁of ▁Ch ang sha : ▁ 6 ▁September ▁– ▁ 8 ▁October ▁ 1 9 4 1 ▁Third ▁Battle ▁of ▁Ch ang sha : ▁ 2 4