He wants a war because it’s helpful, not because he has been convinced by any justification for it. So him or his administration providing a justification for it can never be genuine and therefore should not ever be listened to even if it would otherwise be compelling they will lie to you. The only way to deal with liars is to not speak to them.
Navigating political rhetoric surrounding war can be challenging, especially when the motivations presented by leaders are not transparent or sincere. In many historical and contemporary contexts, wars have been initiated not purely on justified grounds but often driven by underlying strategic advantages, including economic gain, political power, or influence on the global stage. Political leaders or administrations may present seemingly compelling justifications for war that mask these ulterior motives. This creates an environment where citizens face the difficult task of discerning truth from propaganda. Recognizing that some administrations may intentionally provide disingenuous explanations is key to developing a more critical and informed perspective. One effective way to cope with such deception is by limiting engagement with misleading narratives and seeking information from multiple independent sources. By fostering critical thinking and skepticism, individuals can better understand the true dynamics at play and participate more meaningfully in democratic discourse. Furthermore, understanding the concept that some wars can be deemed 'helpful' from a strategic standpoint—regardless of moral or ethical concerns—enables a deeper analysis of international conflicts. This perspective emphasizes the importance of accountability and transparency in leadership to prevent manipulation of public opinion. Ultimately, combating political lies requires vigilance and an informed citizenry that demands honesty and integrity from its leaders. Engaging in open dialogues and supporting independent journalism can also empower communities to resist unsupported justifications for war and advocate for peaceful solutions where possible.