I’d like to suggest two excellent sources—blogs—for reliable analysis and commentary about Russia’s war in Ukraine by first-rate scholars of international law and politics:
 
•       EJIL: Talk! (European Journal of International Law) https://www.ejiltalk.org/
•       Just Security https://www.justsecurity.org/
 
Occasionally the Opinio Juris blog also has relevant posts: http://opiniojuris.org/
 
And those philosophers and students of philosophy who are thinking about what is happening in Ukraine in light of Just War philosophy and international criminal law, should familiarize themselves (if they have not already) with the works of Larry May, perhaps our foremost philosopher when it comes to international criminal law (which is at the same time cognizant of the Just War tradition). I would add that two books by another brilliant philosopher, Allen Buchanan, stand apart and complement May’s work; although they are not about international criminal law they treats topics that overlap with May’s arguments when not providing some measure of support for them: Justice, Legitimacy, and Self-Determination: Moral Foundations for International Law (Oxford University Press, 2004), and The Heart of Human Rights (Oxford University Press, 2013).
 
•       May, Larry (1987) The Morality of Groups: Collective Responsibility, Group-Base Harm, and Corporate Rights. Notre Dame, IN: University of Notre Dame Press.
•       May, Larry (1992) Sharing Responsibility. Chicago, IL: University of Chicago Press.
•       May, Larry (2005) Crimes Against Humanity: A Normative Account. Cambridge, UK: Cambridge University Press.  
•       May, Larry (2007) War Crimes and Just War. Cambridge, UK: Cambridge University Press.
•       May, Larry (2008) Aggression and Crimes against Peace. Cambridge, UK: Cambridge University Press.
•       May, Larry (2010) Genocide: A Normative Account. Cambridge, UK: Cambridge University Press.
•       May, Larry (2011) Global Justice and Due Process. New York: Cambridge University Press.
•       May, Larry (2012) After War Ends: A Philosophical Perspective. New York: Cambridge University Press.
•       May, Larry (2015). Contingent Pacifism: Revisiting Just War Theory. Cambridge, UK: Cambridge University Press.
•       May, Larry and Zachary Hoskins, eds. (2010) International Criminal Law and Philosophy. Cambridge, UK: Cambridge University Press.
 
As some of our parents taught us, two wrongs don’t make a right, but political rhetoric and commentary from journalists, pundits and the chattering classes more generally in the mass media should inform us of relevant history on this score, for example the fact that the crime of aggression (and crimes against peace) and war crimes during and since World War II have often been committed by Liberal democracies like the U.S., France, and Great Britain (and NATO). This rhetoric reeks of self-righteous and holier-than-thou posturing and a corresponding attitude that lends itself to demonization of all-things-Russian and infliction (through indiscriminate sanctions) of suffering on people in Russia who are virtually powerless to change the status quo. I recently posted on this within the parameters of what has correctly been termed “victors’ justice:”  https://www.religiousleftlaw.com/2022/03/beyond-victors-justicethe-need-and-value-of-international-criminal-justice-and-law.html
 
Finally, readers might find two of my compilations useful should they be doing any further research or be curious about the relevant literature in international law:
•       International Criminal Law: https://www.academia.edu/4844070/International_Criminal_Law_bibliography
•       Violent Conflict and The Laws of War—Moral, Legal, and Political Dimensions: https://www.academia.edu/5179203/Violent_Conflict_and_The_Laws_of_War_Moral_Legal_and_Political_Dimensions_A_Select_Bibliography