Complex sentence: In the second half of the 1970s, the United Kingdom was in a state of social unrest and widespread poverty as a result of the ineffective social politics of both Conservative and Labour Party governments during a three-year-long period of economic recession.
Split into simpler sentences: In the second part of the 1970s, the United Kingdom was in a state of social unrest and diffused poverty. This was the result of the ineffective social politics of both Conservative and Labour Party governments during a three-year-long period of economic recession.