Quite often in world history it happened that a brother went to war against his brother, and a son against his father. Actually, roughly speaking, civil strife is the hostile relationship between relatives within the family, discord among its close members.
Common sense
Now this concept is used in a wider context - direct and figurative. Civil strife is not only a family feud. There are also significant disagreements on various issues between any people, a quarrel between political and public figures, groups, regions, even countries. The concept is also used in relation to management personnel or several related firms, for example, feuds between directors or enterprises. In a sense, the civil war between the population of Russia in the 20th century is also civil strife, when brother rebelled against brother, son killed father.
Princely feuds
In a historical context, the concept is usually used in relation to wars for power and territory between relatives-princes in the era of Kievan Rus. The main time period of these historical wars fell on the tenth to eleventh centuries.
Reasons
It is possible to single out the main reason: in the territories subject to the princes, in those years there was no single state, no general centralization of power. Absent, according to historical data, and the tradition of transferring power to the eldest of the sons. And since the great princes left behind many heirs-sons, civil strife was the most common way out of the existing situation in the struggle for power. It can be said that at a certain stage in the history of Russia (approximately the 13th century), the rulers simply doomed their heirs to endless enmity. However, even having received power, for example, in one of the big cities, the heirs also sought to get the board in Kyiv itself. And civil strife is a struggle for the redistribution of territories, the desire of some princes, on the contrary, to be less dependent on the Kyiv authorities.
Classification
In the history of Russia, it is customary to single out several stages of such enmity. The first one dates back to the 10th century, when the civil strife of the sons of Svyatoslav arose. The second (beginning of the 11th century) is the struggle for supremacy between the sons of Prince Vladimir. And at the end of the 11th century, the sons of Yaroslav already made attempts to redistribute the inheritance. All these endless wars were quite bloody, and, in fact, led to the mass death of the Russian people - ordinary peasants, townspeople, warriors, as well as heirs who were less fortunate in the redistribution of territories and power.