Here is a causal chain based on the cause and effect relationships provided:
-
Japan invades China and occupies Manchuria and a few years later occupies Nanjing.
- Effect: The U.S. and Western nations have economic interests here and grow frustrated.
-
Japan joins the Axis Powers.
- Effect: The U.S. imposes embargoes on Japan and moves its fleet to Pearl Harbor.
-
Japan bombs Pearl Harbor.
- Effect: The U.S. enters WWII.
-
The U.S. drops atomic bombs on Hiroshima and Nagasaki.
- Effect: Japan surrenders.
This sequence organizes the causes and their corresponding effects in a logical order.