CSKA means Central Sports Club (Ukrainian - Klub) of Army. That is why the main symbol in the center is the combination of symbol of Ukrainian army (coat of arms of Ukraine - Tryzub) and symbol of Kyiv - chestnut tree leave. The shape of a circle refers to old badges of Ukrainian army sports teams.
@Ochoa510 It is not, I'm fluent in russian and see the substantial errors here. Here is how it goes in russian without the latin " i " that you added at the end and in a city's name : Центральный Спортивный Клуб Армии Киев .