formidable enemy
7.When confronted by a formidable enemy, they united with the workers and peasants against him, but when the workers and peasants awakened, they turned round to unite with the enemy against the workers and peasants. 
8.Since fighting had not broken out among the landlords and since formidable enemy forces were still in Pinghsiang, Chaling and Yuhsien on the Hunan border, we would have been giving the enemy his chance if we had moved our main forces northward.
