I had to read that 3 times - thought it said "Study for Breasts" at first glance
Ha!
Breseis was the captured Trojan princess that Achilles was in love with in The Iliad of Homer. He wouldn't fight for the Achaeans because Agamemnon (a higher king) stole her. As a result of Achilles' and his army's refusal to fight the Achaeans started to lose.
Agamemnon later returned her to Achilles.
The turning point of the story was when Patroclus, Achilles' young cousin and ace buddy, put on Achilles' armor because he was embarrassed that Achilles was unwilling to continue the battle, and went out to fight in his place, thinking that he'd inspire the army by doing so. He was killed by Hector, the Trojan hero.
Achilles was so pissed over the death of his cousin that he challenged Hector to single combat, and killed him.
The folks we call "Greeks" in the story were in fact referred to as Achaeans in it. In that era, probably around 1400 BC, they were fiercely tribal, and everything was about their reputations and manhood requiring acts of vengeance, like modern gang warfare.
They didn't go to war over the possession of a woman, of course. They went to war over being dissed. It's really a classic story, and the fact that it is several thousand years old tells us a lot about how human beings haven't changed much.