Officially speaking: The stars on the flag of the European Union (EU) symbolize unity, solidarity, and harmony among the peoples of Europe. The number of stars (12) is not related to the number of member countries but was chosen as a symbol of perfection, completeness, and unity. The number 12 holds historical and cultural significance in many traditions, often associated with wholeness (for example, 12 months in a year, 12 zodiac signs, etc.).
The official explanation provided by the Council of Europe emphasizes that the 12 stars represent an ideal of unity, regardless of the number of EU member states. The stars are arranged in a circle, symbolizing the unity and equality of all European peoples.
sorry to disappoint you but even the globalist German newspaper Welt told all the world in 1998 that the 12 stars of the EUflag represent the 12 tribes of israel and the circle represents "Mary" ... and they themselves call them "judeo-christian organization" -- it was a hard job for many and a small majority to keep this superstition out of the official EU-declaration !!
Since when did the propaganda yellow press become a source of reliable information? Look at how much baseless Russophobia they are spewing now. And in the 90s, there was a different agenda, different news customers....
Thats not "yellow press" - this is more or less the official German news-outlet ...and most of all it was common knowledge in the 80s and 90s .. before they began to hide it ... maybe you are too young to remember -- I am not, because I was one of them running against the EU from the moment it became visible what they planned and I worked for media half of my life .. be sure I know what I am talking about !
oh and of course the catholich church is extremly proud of "Mary" and the 12 tribes of Israel ..
Of course 12 can be explained as everything since the Sumerians more or less invented it -- but in this case the main reason was clear and there is an interview somewhere online where the inventor of this flag talks about it .. and the "promise that the 12 tribes would retake Europe" ... blabla but thats what it is .. !!

Я скорее поверю, что это 12 месяцев, братья из народной сказки)) тоже всех объединят!
Hard to post an original in a different language than the original but its necessary to proof the content .. and I dont like to link to outgoing originals bc it sends userdata with it .. and I really dont want to provide them with the userdata of users who are not a friend of them ...
The official text from Luxembourg ...

Thank you for your witness vote!
Have a !BEER on me!
To Opt-Out of my witness beer program just comment STOP below