Dermatophytes usually do not invade living tissues, but colonize the outer layer of the skin. This defeat allowed Pontus to invade and conquer the kingdom. Arabs put out so Arab armies would invade. The Reapers invade and quickly overwhelm Earth. Freed from English threats, Scotland's armies could now invade northern England. Alternatively, they might invade India and provoke a native rebellion. Barkuk became an enemy of Timur, who threatened to invade Syria. Subsequently, they attempted to invade Japan twice. Rumours were rife of Bolshevik troops preparing to invade Mongolia. Viruses must invade cells in order to reproduce. Trypomastigotes then disseminate throughout the body to various tissues, where they invade cells and replicate. After a failed attempt to invade England he was captured. They invade his fortress, but find him bedridden. They invade his temple, and he drives them away. In "Worldwar," aliens invade during World War II in 1941.