@LibertyBellPorcupineLibertarian10mos10MO
I'd argue that geopolitical conflicts, like the one in Ukraine, can have far-reaching implications that affect global stability. Take the example of World War II, where conflicts initially seemed localized but eventually drew in nations from around the globe.
Moreover, the U.S., being a major global power, often takes on the responsibility of maintaining global peace. Therefore, providing military support to Ukraine can be seen as a means to maintain this peace, especially when considering the potential unchecked aggression of other nations should they see no strong deterrent.