Survival Does Not End the War
Scar's Brother Studies Both Sides of Alchemy
SPOILER!
Scar's brother researches Amestrian alchemy and Xingese
alkahestry, eventually recognizing that Amestris has an artificial distortion built into its alchemical system.
His work produces two complementary arrays: one associated with destruction and another with reconstruction, plus the larger reverse array that can counter Father's interference.
Why it matters
Scar begins Brotherhood carrying only part of his brother's work. His character arc is literally incomplete until he accepts that destruction cannot be the only half he uses.
Scar Receives the Arm He Spends the Series Learning How to Use
SPOILER!
Kimblee's attack leaves Scar gravely wounded. Scar's brother gives up his own arm to save him, leaving Scar with the tattooed destruction array that becomes his signature weapon.
For much of the series Scar uses that inherited power as if its meaning were obvious:
Amestrian alchemy destroyed Ishval, so he will use alchemy to destroy the people responsible.
What changed
Learning the rest of his brother's research eventually turns the arm from an instrument of revenge into one part of a larger act of restoration.
The Rockbells Make Scar's Revenge Impossible to Keep Clean
SPOILER!
Winry's parents treat wounded Ishvalans despite being Amestrian civilians. Scar, delirious after losing his brother, kills them after awakening in their care.
The revelation does not erase what Amestris did to Ishval, and Brotherhood does not use the Rockbells to flatten the war into 'both sides were equally wrong.' It makes Scar confront something narrower and harder: being a victim of state violence does not make every act of revenge just.
Why it matters
Winry and Scar force the story to separate justice from repetition.
Miles Shows an Ishvalan Can Remain Inside the Military Without Calling It Innocent
SPOILER!
Major Miles serves at Briggs while openly carrying Ishvalan ancestry. Olivier Armstrong values his competence and refuses the racial logic that helped justify the extermination.
Miles does not pretend Amestris has made amends. His position shows a different survival strategy from Scar's: remain inside the structure, gain leverage and make future decisions harder for the old ideology to reproduce.
Why it matters
Brotherhood gives Ishvalan survival more than one political answer.