The blow or force which brings final victory in battle (the Vrtrahatha) is the one which fulfills the vow (Vrata) which was made upon bringing or meeting conflict. It is the blow or force which brings peace, which restores justice, which brings final victory in battle. Though commonly misunderstood to be an honorable act of murder (or suicide) - for the word does imply the killing of enemies - it more accurately may be rendered as "the ending of hostility." Vrata is an act of abstinence which is conducive to continence, it is an act of self-restraint.
Commonly, a little blood suffices to satisfy the human ambition for wrath. Humans are typically content to slay or torture each other on an individual basis. Yet there may come a time of mass intoxication, when in anger numerous people gather for the purpose of a mele, and organizing themselves into battalions exhibit the most exquisite form of hatred, one which cares nothing for the consequence of war, and forgetting even the reason that the war was begun, neglect to understand that in the intoxication of anger no vow was made to consecrate the fighting. Such a drunkard does not know when to stop their fighting. For such a drunkard, there can be no Vrthahatha. Such a drunkard is easily conquered by the Vrata of the conqueror.
Before engaging an opponent in any conflict, whether economic, spiritual or martial, be sober, self-restrained and fully aware; become a soldier of Peace if you desire victory. Peace will always win - in the end. Know when to stop. Yoke yourself to your vow.