Ever Victorious Army
From A Wheel of Time Wiki
The Ever Victorious Army is the name given to the Seanchan army because it has never been defeated. While it has lost battles, it is by description ever adapting and switches strategies and methods so that the next time it confronts the enemy, they'll be sure to win.
Notable losses in the Westlands include the Ebou Dar defeat by the Legion of the Dragon, aided by Asha'man and Rand al'Thor himself, the minor strikes sowing chaos carried out by Rodel Ituralde's forces and at the hands of the Band of the Red Hand under Mat Cauthon.
