Christian fundamentalism will takeover within the US military. Its become increasingly pervasive within the Pentagon and on US bases. There are plans to build several more huge tax payer funded megachurches on US bases where christian fundamentalists and christian zionists set the narrative of the war in terms of the religious angle.
On the second point, a war with Iran will involve a major ground force component. Israel will be protected at all costs even if it destroys the country.
The bill needs to be more clearly defined. I have no doubt that this administration or the next will want to go to war with Iran, and will find a way to make this bill work to their advantage in some way.