In an effort to stay on topic, I've reposted the issue brought in the OP below:
So the question is, in Quran are there directives to establish an Islamic Empire proactively. I'm seeing a few verses encouraging participation in the fighting. A good chunk of the verses are ecouraging monetary support. Those who don't do either are labeled hypocrits. I'm not seeing anything in these verses which direct Muslims to invade, conquer, and establish an Islamic empire.
Yes. That's why I keep mentioning surah 9 and the offensive military campaign (against the Byzantines) that inspired it. Verse 9:29 is very clear about that as it says, "
Arberry: Fight those who believe not in God and the Last Day and do not forbid what God and His Messenger have forbidden -- such men as practise not the religion of truth, being of those who have been given the Book -- until they pay the tribute out of hand and have been humbled."
The fact that they had to travel across the desert for two weeks to get to Byzantine territory in order to engage an empire that had never attacked them puts paid to any claim of self defense. And remember, this was Mohamed himself who waged this campaign, so there is no doubt that this offensive push is ingrained into Islam.
OK, I read very briefly on this on wikipedia. They claim that the beheadings were a result of a broken treaty.
History is written by the victors. First, the Banu Quraiza in no way aided the Meccans in the Battle of the Trench. Any treaty that existed (and there is a lot of debate about that) would have been for the protection of the city, but it wasn't the target - the Muslims were. The Meccans had this war made against them, and they were trying to end it on their terms. There was absolutely no reason for the Jews to help the Muslims, so they didn't.
Second, even if the leaders of the Banu Quraiza had broken a treaty, would possible justification could there have been for Mohamed to behead every single male in the tribe? There wasn't even a battle. The Jews surrendered without a fight and Mohamed slaughtered them.
Yes the Quran speaks very harshly about this, but that doesn't show that the Quran directs Muslims to forcefully establish an Islamic empire. Further, wikipedia says that the justification for this violence against Banu Qurayza comes from Hadith, not from Quran.
Again, Mohamed was the leader, and he could have stopped the slaughter, but he didn't.