Which countries played a major role in the conflicts of the Time of Troubles?

We know from the history of Russia that in the period of the late 16th – early 17th centuries the country was in a state of troubled time, which was characterized by a significant economic, political and social crisis. In addition, the situation was worsened by the political ambitions of the countries of the Commonwealth and Sweden, which wanted to expand their lands at the expense of the territories of weakened Russia.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.