The setting of Civil Peace by Chinua Achebe is different that that of "The Lesson" by Toni Bamabara.
In Civil Peace, the story takes place in Nigeria. A civil war has just ended. People are trying to rebuild what they have lost due to the war, and homes are bombed out, some partially standing, while a few remain intact.
In "The Lesson," by Toni Cade Bambara, the story takes place in the United States. Children have been brought into an unfamiliar part of the city by Miss Moore to see the inside of a large store. No war has taken place, but a battle is raging in the homes of families which are fragmented by poverty instead of bombs as they fight to survive with the little they have.