Which of the following is an essential element of geography?

movement

uses of geography

relative location

latitude

Correct

A willingness to unify against an opposing ideology

Explanation:

In the passage below, the views expressed about trendsin European Christendom is about the willingness to unify against an opposing ideology. This could be seen in this quote below:

"For the love of God, we will add to the fleet fifty armed galleys on condition that, so long as we act in company, of all conquests in land or money, whether at sea or on dry ground, we shall have the half, and you the other half"

The knight was talking about the need for them to carry out their Crusade in agreement together rather than individually.