The Oriental Orthodox and the Eastern Orthodox have pretty much the same understanding of piety. It is one of the earliest schisms, and the fsct thst we are so similar is a restament to how faithful we have both been to preserve the faith. The fact that they admit the same Christology as us is proof that they should have went with the church when it came to Chalcedon.
But it'll take a while for the schism to fully be healed. As I said though, we get along great, and we do share our churches with them. They are now training their clergy at our seminaries.
I don't really think the Spanish are entitled to give back any mosques, because Muslims invaded their country. Just as they invaded south Eastern Europe. Just as they invaded India.
And spreading the faith militarily is not our way, as it is written..
"For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places."
But spreading the faith militarily is a precedent started even by the one you call prophet, who took his revenge on his persecuters. Yet Jesus Christ said, "That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also." And
"Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy.
But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
That ye may be the children of your Father which is in heaven: for he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust.
For if ye love them which love you, what reward have ye? do not even the publicans the same?
And if ye salute your brethren only, what do ye more than others? do not even the publicans so?
Be ye therefore perfect, even as your Father which is in heaven is perfect."