I was curious about dense urban warfare and three modern battles came to mind. The Siege of Sarajevo 1992-1996, the Siege of Mariupol 2022, and the Battle of Aleppo 2012-2016. I got the numbers from Wikipedia:

Data for Mariupol is the fuzziest with a lower (reliable) estimate of 8000 civilian deaths, but a more realistic estimate of at least 25,000 civilian deaths. The highest estimate for soldiers dead is around 12,000 but 4,000 is more realistic. I’m not gonna compute the proportion here because the estimates are too fuzzy. Mariupol had a pre-war population of about 425,000. The siege of Mariupol is certainly one of the worst human rights disaster of our century, which justifiably put some of the Russian perpetrators on an ICC list of war criminals under investigation. It lasted for almost 3 months and left 90% of Mariupol’s high rise residential housing were damaged or destroyed. I’m sure Russian generals and political leaders have their excuses and reasons for causing this horror. They still belong in the Hague for causing this tragedy.

https://en.wikipedia.org/wiki/Siege_of_Mariupol#Civilian_cas...

The Siege of Sarajevo (pre-war population of 525,980 [incl. surrounding area]) has been thoroughly investigated and has much more reliable numbers:

- 5,434 civilians killed

- 5,829 soldiers killed

The horrors of this siege are not to be understated. 40% of the children living in the city were directly shot at by snipers, 51% had seen someone killed, 39% had had at least one family member killed, 73% had their home attacked or shelled. Over 100,000 residential buildings were damaged or destroyed and almost every non-residential building was damaged or destroyed. The horrors lasted 4 years, with the wor The ICC was not shy about prosecuting Serbian (both from Serbia and Srpska) generals and politicians for their crimes against humanity. These generals and politicians all claimed they had their reasons. However, they did not, and were correctly found guilty.

https://en.wikipedia.org/wiki/Siege_of_Sarajevo#Casualties

The Battle of Aleppo (pre-war population of about 2.5 million) is probably the closest condition you’ll get to Gaza in terms of urban warfare in a dense civilian area. Like Gaza, Aleppo was the largest city in Syria. The Siege lasted for four years and left at least 31,273 people dead, of which 73% were adult men. 23,604 or 76% of all fatalities were civilians. Almost every neighborhood in Aleppo was targeted with indiscriminate shelling. More than 33,500 damaged residential buildings in the city. Everybody agrees (except maybe Syrian generals and leaders) that the human cost of this 4 year long siege was too great. The UN security council voted for the ICC to investigate the many war crimes committed in the siege but Russia and China vetoed it. History has already condemned them.

https://en.wikipedia.org/wiki/Battle_of_Aleppo_(2012%E2%80%9...

The Gaza strip is an urbanized area that fits between Seattle and Tacoma with a pre-war population of 2.4 million. The Gaza Genocide has so far lasted 7 months and no end in sight. 35,000 people are confirmed dead, most of them civilians. Over 90% of all residential housing has been damaged or destroyed in Gaza city. Almost everybody in Gaza knows someone that has died. Nearly everyone in the Gaza strip has been displaced, most people multiple times.

The horrors of Gaza seem no less then those in other examples of dense urban warfare. I know Israeli officials claim they have a reason to cause this horror, however, they do not. And they deserve the Hague as much as the war criminals mentioned above.