What was one significant indication that the european feudal system was effective?

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

Choosing to engage in military action to assist another country is an example of sanctions. internationalism. o isolationism. o diplomacy.

How did the mexcian war of independence differ from the american revolution?