The phrase "such upheaval" refers to a significant and chaotic change or disruption in a situation or system. It implies a state of disorder or turmoil that can have a profound impact on the circumstances or people involved. Full definition
It was not our country's place to judge that, when other nations were caught in such upheavals and were moving away from both political and economic oppression, communism was worse than any available alternative. (religion-online.org)
The financial services industry has rarely undergone such upheaval as it has done in recent years. (fieldfisher.com)
While such upheaval has been made up for in the past by new types of work created by advancing technology, some economists have warned that the current pace of change is too fast for employment levels to adapt. (news-to-use.com)