I would only to interfere to help Somali girls who do not intereact with ajnabi males. 
I remember when I was in high school there was 2 Black girls in my history class who I overheard talking about attacking  this Somali girl in a different class to ours after school, luckily I knew one of those Black girl's older brother who was in a year above us and I spotted him in the canteen towards the end of lunch time and told him his sister trying to fight someone else after school, he got his phone called his little sister and told her don't you dare get into trouble talking about how he he'll tell their parents. So one those chickened out of the attack of the Somali girl and the next day they clocked it was me who informed the older brother of the girl and have been giving some silly screwfaces ever since.  
I didn't have this patriotic conscious back in the day it was just a gut reaction and alhamdullilah  this Somali girl was one of those girls that doesn't interact with ajnabi males so till this day i'm that I helped her. For good girl's like like her I would even stop the fight phisically by dragging away the ajnabi or pushing her away or grabbibg her a and swinging her to ground as I don't hit females.