Commentary-themed posts tend to deal with recent developments. These will typically be much shorter and less detailed than my analysis-themed posts for which commentary-themed posts may serve as “building blocks.”
The following two undated videos offer fairly uncommon documentary evidence of the employment of armed “first-person video” (“FPV”) multirotor drones, seemingly of the fiber-optic cable communication uplink/downlink variety, to navigate inside buildings and attack targets therein.
As I’ve explained in several recent posts, armed “FPV” multirotor drones, especially those of the fiber-optic uplink/downlink variety, should not be viewed as just another type of battlefield armament but miniature strike munitions that enable highly surgical micro-level targeting. Prior to the advent of these uncrewed aircraft turned munitions, which are notably composed of quite inexpensive commercial-off-the-shelf components, militaries had to, in effect, destroy a building so as to kill its occupants and/or destroy the objects placed within. Militaries can now use armed “FPV” multirotor drones of the fiber-optic uplink/downlink variety to attack persons and/or objects located inside buildings—these uncrewed aircraft turned munitions can also be used to breach an opening if required. As things stand, the maximum practical range of armed “FPV” multirotor drones of the fiber-optic uplink/downlink variety is around 30-50 kilometers. The maximum practical range may, however, expand, at least in certain operational contexts, as new approaches to employment are developed, tested, and refined. As with so many other areas of military technology, developments in the Russia-Ukraine War are likely to spread far and wide, not least when it comes to uncrewed aircraft-turned-munitions that are built from readily accessible commercial-off-the-shelf components.
Several relevant posts:

