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2.
Is the largest
Area of Siberia is 13.1 million km², while other two are much smaller
3.
Has Belgrade as its capital
5.
Its president is Bashar al-Assad
6.
Is predominantly Muslim
87% of Syrians are Muslim, while Serbia and Siberia are mostly Eastern Orthodox
7.
Has the biggest number of Russians living there
8.
Was formerly part of Yugoslavia
9.
Wasn't under Ottoman Empire
10.
Its most populous city is Aleppo
11.
Novak Djoković and Nikola Jokić were born there
Correct spelling of Novak's surname in Serbian is: Đoković
13.
Has land border with Turkey
14.
Its official language is Arabic
In Siberia is Russian, while in Serbia is Serbian