Why did the Germans and Swedes decide to seize the Novgorod land?

During this period of time, Kievan Rus was greatly weakened due to the invasion of the Mongol-Tatar troops. The Germans and Swedes wanted to take advantage of this position. So there were two campaigns on Novgorod, but the enemy did not manage to achieve success, since in two battles his troops were defeated by the Russians.

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.