Complex sentence: After entering Banat, river becomes slow and meandering, causing floods in rainy years and especially devastating were floods of 2005, when villages of Boka and Jaša Tomić were badly damaged.
Split into simpler sentences: After entering Banat, the river becomes slow and meandering, causing floods in rainy years. Especially devastating were the floods of 2005, when the villages Boka and Jaša Tomić were badly damaged.