[IronKros]

Christianity certainly doesn't say this and the conquest wars recorded in Joshua were one-time deals, unlike the open-ended murder called for in the Koran.

Granted, modern day Christians are not ones to invade foreign countries on religious wars. However, if their religious leaders told them it was God's will. Wouldn't the believers be obligated to follow in the same military history of Moses and Joshua?

Jainism?
Jainism is far from new. It is one of the world's oldest religions even predating Hinduism. Scholars placed some of their earliest leaders in the 9th Century BC.

Were I in the market for a new religion, I'd go with Pastafarianism.

Pastafarians... hah! Cthulhu will devour them along with everyone else!
Praise he who slumbers in the briny deep!

[Enosh]

"Wouldn't the believers be obligated to follow in the same military history of Moses and Joshua?"

In a sense, we are. Jews and Christians alike are willing to die for their beliefs, if need be. But such true martyrdom would, (and did), take place under persecution, not warfare.

In the case of the Crusades, they should be seen in light of the aggressive invasions prior.

"Jainism is far from new."

Zoroastrianism is another fascinating ancient religion. It's parallels with others is remarkable.