What is the correct chronological order of these events: Korean War, Iran-Iraq War, Panama Invasion, USSR disbanded?

The correct chronological order of the events is indeed: Korean War, Iran-Iraq War, Panama Invasion, and USSR disbanded.

The Korean War occurred first, starting in 1950 and ending in 1953, marking a significant conflict in the Cold War context. Following that, the Iran-Iraq War took place from 1980 to 1988, where both nations engaged in a prolonged and brutal conflict. Subsequently, the United States invaded Panama in December 1989, primarily to depose General Manuel Noriega and address issues related to drug trafficking. Finally, the dissolution of the USSR in 1991 marked the end of the Cold War and led to significant geopolitical shifts.

The listed events are arranged correctly in option A based on their historical timelines and provide a logical sequence of key developments in mid-to-late 20th century global history. This allows for a clearer understanding of the progression of international conflicts and political changes during that era.