Ottomans brought tradition of drinking coffe,and in Balkan region coffe is part of culture.My question is : Did Ottoman soldiers drank coffe before every battle to increase their performance ?

Interesting thought. But we must know that first coffeehouse was opened in Istanbul in 1555 during the reign of Suleiman the Magnificent. It was founded by two merchants from Damascus and established in Tahtakale, Istanbul. This makes me wondering why it didn’t work on other neighbors, for example, Syrians or Arabs?