The entire world felt the strongest economical depression in the first decade of the third millennium. These years represented the world's hardest situation when it comes to resources. This didn't affect only 1st world countries, but also all the other underdeveloped countries that depend on them. All of the United States' allies suffered this depression, most of Europe and Africa also did. China has remained pretty strong, as it is totally unattached from the U.S. which was the center of the crisis.
When the terrorist attack of 9/11 happened, there was a very strong international recession that a lot of people never knew about. Connections between countries were paused as no one seemed trustworthy. The World Trade Center was down, all the operations and data that was stored there was lost. The papers that were burned during the attack had very valuable information that sustained a substantial part of the USA's economy. This attack was notably made for many more reasons than only generating fear in the hearts of American people. Many international economical activities were frozen due to this important data loss.
For the next 9 years, the world remained under that recession. In fact, it is now still on recession and the entire economy seems like it was totally lost. Little by little, some countries are managing to survive the crisis and look for side solutions for their economical issues. Countries like The United Kingdom, Canada, Australia, Ireland and others are surviving the crisis in a much more stable way than the rest of the countries.