The Balkan wars were fought between whom and for what purposes?

In the first war, the states of the Balkan Union fought against Turkey. Turkey has lost. The second war was fought between Bulgaria and the countries of the Balkan Union. Bulgaria lost. In the first war, the historical task was to unite all Bulgarians into a single state. For this it was necessary to reconquer the territories of the Ottoman provinces. Other countries supported the Bulgarians. The second war began between the Greco-Serbian alliance and Bulgaria. The reason for the territorial disputes after the first Balkan War was the division of territories.