During World War II, there were two groups of countries fighting against each other. One group was called the "Allies," which included countries like the United States, England, and the Soviet Union. The other group was called the "Axis."
The Axis was made up of three main countries: Germany, Italy, and Japan. They formed an alliance, which means they worked together to try to win the war.
The term "Latin Axis" is used to describe the alliance between Italy and other countries in the Mediterranean region, like Spain and Portugal.
So basically, the Latin Axis was a group of countries that were working together during World War II to try to win the war against the Allies.