A system of political organization in medieval Europe in which a vassal gave service to a lord
and received protection and land in return

Feudalism was the leading way of political and economic life in the Medieval era. Monarchs, like kings and queens, maintained control and power by the support of other powerful people called lords. ... The feudal system broke down in the 13th and 14th centuries following massive abuses.

Explanation:

hope this helped

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.