If you mean a about a war in heaven — the most famous source is Revelation 12:7-9 (Christian Bible), where Michael and his angels fight against the dragon (Satan) and his angels, and Satan is cast down to earth.
If you’re asking for a (perhaps posted on OK.ru), that would depend on the author — for example, Mikhail Bulgakov’s The Master and Margarita contains a version of cosmic/spiritual battles, though not a direct “battle in heaven” as in Milton. battle in heaven ok ru
If you mean a — John Milton’s Paradise Lost (Books 5–6) gives a detailed epic account of the battle in heaven between the loyal angels and the rebel angels led by Satan. If you mean a about a war in