Looks like the war with Iran is cooking off

[quintessentone]

Another thing - I've heard now on several platforms, including this one, references to this "war" with the modifier of "illegal" attached to it, as in "illegal war". Can someone please tell me what they think makes this action "illegal"? Under whose law? What is the statute that makes it "illegal"?

Yeah, that always makes me laugh.  It's on different discussion forums and on left wing 'news' (propaganda) sites.   It's a marker that advertises the person is politically left wing and anti-American.   They can't actually speak to what makes it 'illegal', since the world isn't run by a single legal system.   It's their buzz word that they probably picked up in left wing BlueSky from other indoctrinated people there.

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In their minds they have a reason. 

Their minds are warped and they have no reason.   They are whacked out murderers.   Plain and simple.

Could it be the US teaming up with a homicidal maniac who targets civilians?

I'm sure you are trying to claim that's Netanyahu.   Except you are wrong.   Israel purposely avoids targeting civilians.   They have proven this.   And it would make for bad warfare to do so, so your statement makes no sense militarily.

Look what's happening in Lebanon, they are targeting civilians. They are still killing Palestinians in Gaza/West Bank since the ceasefire, an additional near 700 more people. Israel needs to level with bombs all the surrounding lands for occupation.

As for that war being illegal: (LLM)

"Under international law, the attacks violate the UN Charter’s prohibition on the use of force (Article 2(4)), which only permits military action in self-defense after an actual armed attack or with UN Security Council authorization.  Neither condition applies here:

• Iran did not attack the U.S. or Israel before the strikes.
  
• No imminent threat was proven; in fact, direct negotiations were ongoing with Iran and Oman as a mediator hours before the attack. 
  
• The U.S. and Israel have not sought or received UN Security Council authorization.
  
• The doctrine of anticipatory self-defense does not justify the strikes, as the threat was not "instant, overwhelming, and leaving no choice of means" (Caroline doctrine). 
  
  

Under U.S. domestic law, the war is unconstitutional:

• The Constitution grants Congress the sole power to declare war (Article I, Section 8). 
  
• The War Powers Resolution of 1973 requires presidential authorization from Congress for military action beyond 60 days unless there is a formal declaration of war or an emergency. 
  
• No such authorization was obtained. The Trump administration’s claims of an "imminent threat" were contradicted by Pentagon briefings and diplomatic developments. 
  
  

Additionally, attacks on civilian infrastructure—including a school in Minab that killed 165 children, a sports hall in Lamerd, and a hospital in Tehran—appear to constitute war crimes under the Geneva Conventions, which prohibit targeting civilian objects and require proportionality in warfare. 

Legal experts, human rights organizations, and international bodies, including the UN General Assembly, have condemned the attacks as a war of aggression, a crime under international law.  The U.S. and Israel are accused of acting on regime change goals, not legitimate self-defense, further undermining the legality of the conflict. 

Read that again...war crimes under international law.