Source:the treaty was signed in 713 CE between 'abd al-Aziz',the commander of the muslim forces invading spain, and Theodemir, the Christian King of a religion in southern Spain. What type of document is this?What is its purpose?

This is a historic document.

Explanation:

The document presented in the question above is a historical document. This type of document has the function of presenting individuals or situations that happened in ancient times. They serve as an artifact, which proves the existence of people, treaties, events and even civilizations.

because the vietnam war was fought in an especially brutal and untraditional way