The battle you are referring to is actually called the Battle of the Ironclads. In this battle, it was the Merrimac (from the Confederacy) versus the USS Monitor (from the Union). This was the first battle between iron-fortified vessels in the Civil War. This battle ended up in a draw but represented a new form of fighting that both the Union and Confederacy had to be ready for.
The first branch produces... or (i forgot its name) branch. It makes the law idea. The new law then goes to the approval branch. They either vote it good, or trash it. If it is good, then it goes to the supreme court where the law is checked over by the judges and law members to make sure it follows the constitution. If they approve it, it becomes a law...
This would be a professional career pathway.
Answer: They has a larger navy
Hope this answer helps!
Francisco Franco survived World War II and held power until his death in 1975.