Why were the battles of Badr and Hunayn mentioned in detail in the Holy Quran?

The battles of Badr, Hunayn, and Al-Ahzab are among the greatest battles in the life of the Prophet, peace be upon him. The Battle of Badr was mentioned in Surahs Al-Anfal and Al 'Imran, and it was the first battle between faith and disbelief, in which the Muslims triumphed with the support of the angels. As for the Battle of Hunayn, it was mentioned in Surah At-Tawbah, and was specifically mentioned for the lesson it contained regarding the realization of victory when complying with Allah's command, and defeat when worldly gains are preferred. While the Battle of Al-Ahzab was mentioned in detail in a complete surah bearing its name, and the Battle of Tabuk in Surah At-Tawbah, and the Battle of Uhud in Surah Al 'Imran. This detail is attributed to the lessons and admonitions these battles contained, which the Muslim Ummah needs.