So, I wrote this short paragraph in another SE site:
Despite what was feared by what was known as the surveillance threat on freedom of the 2010's, none of the world great nations became a police state. Civil rights organizations had "won" several battles that assured guarantees on individual freedom and privacy in the 2020's.
The wording of the first phrase is sounding too bad to me, probably because I am violating some grammar rules due to my first language being derived from Latin.
How can I better phrase the text above? What grammar rules did I break, if any?