Song in My Hero Academia season 1 episode 10, at around 10:50 There's a song in My Hero Academia that plays in:


season 1 episode 10 at around 10:50
season 2 episode 3 when showing everyone on the minefield
season 3 episode 7 showing all the students and teachers walking back to camp after the villains left.


What is that song?
The Threat of Offense and Defense (脅威との攻防 Kyōi to no kōbō)

I haven't seen episode 7 of season 3 yet, but assuming it's the same song as the first two, there you go :)