Parsha Panorama - Pinchas: Why was Pinchas's Story Split into 2 Parts? 🍢

A panoramic view of Parshas Pinchas with a focus on the following questions: ● Balak ended with Pinchas's execution of Zimri who sinned with the Midianite princess Cozbi amidst of a plague targeting the B'nei Yisrael in response to their intermarriage/assimilation/idolatry. Pinchas picks up with Hashem’s response, the public recognition and promotion of Pinchas to Priesthood. As these are clearly two parts of a single story, why are they separated into two different Sidros?● Hashem commands the B'nei Yisrael to do war with Midian, who assisted Moav in seducing Israel toward idolatry. But, why NOT also do war with Moav?● Why are the 'periodic' Korbanos here and not in Sefer Vayikra?