TV news just reported the IDF is investigating the hit on the Christian church because it IS considered a war crime to hit hospitals, churches, schools.Bingo.
Concussion force from airstrikes can often cause damage to nearby infrastructure or persons (called "collateral" damage).
Nations that comply with the LoAC and the Conventions employ "targetting protocols" (Joint Targetting) in order to minimize collateral damage --- a procedure put in place to verify and ensure the target is indeed a legitimate 'military' target etc prior to striking it. They also employ the use of 'smart' munitions or JDAMs (precision/guided) in their strikes. Israel does all of these things in order to minimize collateral damage to civilians and protected sites. This equates to "Discriminate Fire/Discriminate Targetting". Fire that discriminates between "legit military" targets and those that are not.
I note that absolutely zero of the Hamas missiles being fired follow any of the above targetting or munitions protcols. This equates to "Indiscriminate Targetting". Simply put, they follow no LoAC or Geneva Protocols intended to minimize collateral damage and to preserve civilian non-combattants or protected sites. War Crimes. They hit an Israeli Hospital last week ... not a peep.
When an enemy commits war crimes by placing legitimate military targets in, under, around and on top of legally protected sites, that directly turns that legally protected site into a legitimate miltary target in accordance with the conventions. That is exactly why the placement of these things at/next to those sites is a war crime.
Nations who comply with the LoAC and Conventions will still attempt to minimize the collateral damage to those locations/civilians by doing things like:
- ensuring classes are complete for the day and students out of the school before taking out the missile launch site on it's roof or beside it (as the IDF did in Lebanon just the ther day);
- waiting until a train full of passengers crosses over a bridge before taking out the bridge (anyone recall those airstrikes in the Blakans);
- roof knocking on buildings to allow innocents to get out before the strike comes in on the communications facility that's been set up in one of it's apartments etc.
- etc, etc, etc
Ground Forces:
Always come in after airstrikes have taken out the enemy HQs (Head Quarters / top persons), Communication Facilities, Missile Launch Sites etc. IE: after they've taken out the major threats to their own 'boots-on-ground' (infantry). No difference in this war from any others.
JMO

Churches condemn air strike on Greek Orthodox building in Gaza - Vatican News
An air strike on a building adjacent to St. Porphyrios Greek Orthodox Church has killed several people taking shelter there, and has drawn strong ...

A statement released 19 October stressed that “targeting churches and its affiliated institutions, in addition to the shelters they provide to protect innocent citizens, especially children and women who lost their homes as a result of the Israeli bombing of residential areas during the past thirteen days, constitutes a war crime that cannot be ignored.”
The World Council of Churches (WCC) has also strongly condemned the attack.
“We condemn this unconscionable attack on a sacred compound and call upon the world community to enforce protections in Gaza for sanctuaries of refuge, including hospitals, schools, and houses of worship,” said the WCC general secretary Rev. Jerry Pillay. “Our prayers go out for healing to all those wounded, along with our condolences to Patriarch Theophilos II and all our Greek Orthodox brothers and sisters in Christ.”