Please. The President has no special obligation to the people of Judea or Mesopotamia, nor is he obligated to put securing their independence over the best interests of the American people, and losing control of the American military is not worth a limited victory against a foreign adversary. Klein in his actions critically undermined civilian control of the American military committed high treason and started a war for his own gain in order to save his own skin.
Do you honestly think any American President would've willfully fought a war started on false pretenses for the sole purpose of saving the skin of an ambitious 5-star admiral? No, Perdue did the right thing, he put the kibosh on Klein's plans, reaffirmed civilian control over the military and made it clear that no one tells the President what to do. Was what Perdue did the right thing in regards to the people of the region? No, but the President of the United States has no obligations to anyone beyond the people of the United States and letting the United States Navy turn into a miniature of the Japanese armed forces in the interwar era with a complete inability and unwillingness to follow orders from Tokyo would not have been in the best interests of the American people. How long until the USN views itself as the only thing maintaining to the New Order of the Ages? How Long until the marines are sent in to topple governments on orders, not from Washington but fleet command Singapore?
Perdue picked the best option in a shit deck and it's not his fault Klein put him in that position. It's a shame US Marshals failed to grab him and it's a shame he never met his day in front of a firing squad.