Complex sentence: Until their abolition was announced in 2010, each region outside London had a Government Office with some responsibility for coordinating policy, and, from 2007 to 2010, each also had its own part-time regional minister within the Government.
Split into simpler sentences: Until their abolition was announced in 2010, each region outside London also had a Government Office with some responsibility for coordinating policy. From 2007 to 2010, each region also had its own part-time regional minister within the Government.