Complex sentence: After Indonesia gained its independence from Dutch colonial rule, under pressure from political Islam, it officially recognized only monotheistic religions and required an individual to have a religion to gain full Indonesian citizenship rights, but did not recognize Hindus.
Split into simpler sentences: After Indonesia gained its independence from Dutch colonial rule, it officially recognized only monotheistic religions under pressure from political Islam. Further, Indonesia required an individual to have a religion to gain full Indonesian citizenship rights, and officially Indonesia did not recognize Hindus.