The Slave Trade.
The Gnadenhutten Massacre.
The Trail of Tears.
The Exclusion Act.
Prison camps for ethnic Japanese people.
No Geun Rhi.
Iran, Iraq, Turkey, Dominican Republic and dozens of others.
My Lai and other massacres in Vietnam.
Iran-Contra and Operation Cyclone.
Azizabad, Kandahar and Kunduz.