I was playing as Stannis and thought I had to make a thread for this on Westeros: Total War. Every other good mod has them.
I was still early starting out on the campaign, but I already held the Iron Throne and was at war with Renly's armies. He had more time to build and his army and mine was building and recovering, but launched an assault on Renly. They were strong, but I had Stannis Baratheon and my best general Lester the Brave. I conquered the northern Stormlands with minor casualties and told Lester to continue on with half his army as a scouting force. Meanwhile, Stannis seized Storm's End and Griffin's Roost, but Renly was still out there. I sent Lester through the forests of the southern Stormlands, and finally found Renly, or he found me. Although his northern armies no longer existed, he had been building up in the south, and his armies were ready. He had 1800 soldiers verses my 600 soldiers. At the end of the battle Renly's cavalry was destroyed and the infantry were discouraged by the death of their general. I ordered my cavalry for a final charge that sent Renly's armies back into the forest.
Renly's heir had no armies left to spend and he died a few turns later by the sword along with his last refuge.