Wikijunior:World War II/Battleships
Battleships are large, armored ships that can carry huge guns. They are the descendants of the sailing "Ship of the Line" (the line being the "line of battle", so "Line of Battle Ship"). They played a major role in the war in the Pacific and Atlantic. By the end of the war, the aircraft carrier had made the battleship less useful, and apart from shore bombardment they were rarely used again. The last time a battleship fired its guns in anger was the first Gulf War in the 1990s.
What is a battleship? 
As listed above, battleships are large, armored ships that can carry huge guns. Because of their large power, they were the cool toy that every country wanted one to show that they were the best. Of course, they cost a lot. Because of the battleship's large size, it was the large bully of the sea. If the commanding country felt like it, it could send a battleship into the ocean to sink ships that were owned by other countries, only only other battleships could stop it.
What each country had at the beginning of the war 
The list 
If we look at this table, we see that the Great Britain has the most, with United States and Japan following it. Also, we see that Russia had very few battleships. Now for an explanation. Some countries, like the United States, Italy, Great Britain and France, had kept a bunch of old battleships that were too old fashioned for use in the war. Great Britain had 13 battleships built before 1925 and France had 6 that were very old. The U.S. was pretty much the same, but had a different story. After the Washington Naval Treaty (1922), which basically said that no country could have a lot of these ships, the U.S. stopped building battleships, and only started again in World War 2. That's why 15 of the ships were old ones. The U.S. managed to build ten more during World War 2, but it was a close call. Italy, which had a smaller navy, only had 3 old ships. Meanwhile Japan had re-modernized each of their ships around 1930, so all of their ships were high-tech and ready to go. Russia's navy was pretty much destroyed at the Battle of Shiatsu in 1905, but they got a few ships on loan from other countries to help them. All we have left to explain is Germany. Before World War 1, Germany had a "race" with Great Britain to see who could build the best and most battleships. By World War One, it had become a tie. Some German ships were old, but the number was about the same as Italy had. Germany also had started to build larger battleships called the Spitz and Bismarck as well as some battle cruisers (called pocket-battleships, more on this later) that were already roaming the seas, ready to attack when war started.
What stuff was on Battleships at this time? 
The big guns 
Guns were the main thing on battleships. I mean, without guns, you can't do anything useful with a battleship. Most guns during this time were measured by the diameter of the shell, or hunk of metal they fired in inches. Common main guns were 14 and 16 inch guns, with 8 and 6 inch as "backup" guns and a bunch of 3 and 5 inch guns in case aircraft attacked. Now pause right here and go take out a yardstick and measure 14 inches. If you draw a circle that long, imagine what it was like to have those things, which were full of explosives crashing into ships. Not a very good sight. The shells of the largest guns weighed nearly 2 tons.
To protect from those shells, battleships, as all other ships, had to have armor. Armor for ships is just basically a large wall of metal "hooked" onto the ship to protect it from shells. This was also usually about 14 to 15 inches thick. Battleships also had to protect from torpedoes launched from submarines and destroyers, a topic explained later in this book. To do so, countries had to attach large semi-spheres of metal to battleships so as to stop that from happening. If armor was not used, than battleships would have been sunk in seconds after starting to fight with other battleships.
Other Stuff 
Some battleships had space for accessories, which in this case was stuff like airplane launchers and radar towers. Radar towers were large masts which, when with a radar room in the ship that had a bunch of machines in it, could track whatever approached a set distance from the ship. If something came, crew would be given a warning and would stand ready. Nothing could sneak up on those things for a long while. Another thing added to some ships was an airplane catapult. This wasn't your old catapult of the Middle Ages, but rather a thing that pushed a plane forward very quickly, which could then take off and attack, sort of like a mini aircraft carrier.
Battlecruiser (a.k.a.: Battleship-Lite, Pocket-Battleship) 
The Battlecruiser, Pocket Battleship, or as we've nicknamed it in the title, Battleship-Lite, was a sort of mini battleship. It was fast enough to run away from anything that was bigger than it, but powerful enough to beat senseless anything that was quicker than it. The British and Germans had some at the beginning of World War One, and after that war ended, every country wanted to have them. They saw how cool they were, and they were anxious to get some. Germany and Britain both planned to have a lot, but because of the Washington Naval Treaty, those ships had to be canceled, but Britain did manage to build one battlecruiser. The Germans however "worked around" the Washington Naval Treaty by creating "pocket-battleships", which were basically just battle-cruisers with a different name. Seeing that two countries already had some, the Russians, Americans and Japanese also wanted to have a fleet of battlecruisers. Japan was the only able to do so, since it built them during the 1930s, when no one cared anymore about the Naval Treaties.
What each Country planned to do with their battleships 
Each country knew that, in case of war, they had to have a plan, just like you should have a plan when you play chess or some other strategy game. Here's each group's plans:
Two Allied countries (France and Russia) had small navies, mainly because France's economy went whacko whenever they tried to build a large fleet, and Russia had a small group because, after the disaster at Tsushima (Russia vs. Japan battle in 1905), they did not have enough time to build a large navy before war started (in this case, World War 1 and 2). One thing Russia had a bit of luck with was that they only had one real main port, which was St. Petersburg (in World War 2 called Leningrad). So Russia used most of their fleet to set up a defensive barricade near Lenningrad, and they didn't have to worry about anything else. This was basically the same with the French. Their ships were old, but they had enough to defend each of their main ports. Of course, when Germans arrived and bombed them, the French didn't stay and fight, but ran. They got to a port in Africa, then joined the Germans. After that, they were bombed by British bombers. So, if we take out those two Allied navies, we have two left. Britain, which is an island, needed a navy as its main defensive weapon. If Britain did not have a navy, then it couldn't protect ships bringing in food and the people would starve. This leaves the United States to explain. The U.S. was neither of the ones above, it was actually a large part of a continent and it had a large enough navy to make normal attack operations. The problem was this: How to connect the west and east coast of the country? You can't bring ships over land, so there had to be a water way connecting the two oceans. The answer? The Panama Canal, a canal built in 1914 across the tip of Mexico that connected the Pacific and Atlantic oceans. The problem was that the canal could only move ships that were a set width or less. Anything else would have to move all the way across the coast of South America, which was a very long journey. Since the U.S. did not want these long journeys to take place, they had to rely on weaker ships to be able to defend both coasts of the country
Let's start with an explanation about Italy's plans. Italy was mainly the "little brother" of Germany and Japan. It had a weaker army and a weaker navy, although they had just built four new ships right before the beginning of the war. Italy's main goals were African countries. To capture those countries, they would need to have a troop launching pad, so as troops could sail across the Mediterranean Sea and invade Africa. For that, they had to get rid of British bases and ships in Egypt. Besides those actions, Italy's battleships were not supposed to do anything else. Now for Japan. Japan was an island country, just like Britain. Unlike Britain, she was not really surrounded by any enemy country that had a good navy (Russia's was nearly destroyed and most of it was in the Baltic Sea, while the U.S. was a whole ocean away). Japan could thus maneuver freely, destroying any ships that got in her way. They also had large ships like the Yamato and Musashi, which were super-heavy ships with large guns. If the U.S. tried to build some, they would be too big to fit through the Panama Canal. And now for Germany. Germany is in a worse situation than Britain: it's close to 3 enemy countries (France, Britain, and Russia), and it's got only two or three seaports. To fix this Germany had to capture more ports, which they did when they invaded Norway. Before that, however, Germany already had some pocket-battleships roaming the seas, ready to strike. They had gotten out between World War 1 and 2. With that in mind, let's see if their plans worked out.
The role of battleships in the War 
First Shots 
Although Japan was fighting with China since 1937, World War 2 officially started on September 1st, 1939, when Adolf Hitler invaded Poland. One of the first battles was the Battle of Westerplatte, where an old German battleship named the SMS Schleswig-Holstein supported shock troopers with shell fire. After seven days of tough fighting, the garrison surrendered. The Schleswig-Holstein continued to provide fire support to other troops attacking Polish ports, and was hit by a 152 mm shell at the last one she attacked, Hel. This marked the first shore retaliation against a ship in World War 2.
Graf Spee: High Seas Bully 
One of the Germans' pocket battleships was the Graf Spee. The Graf Spee was in the South Atlantic when war started, and managed to sink 9 ships before the British chased her into Montiviedo, a harbor in Uruguay. After 72 hours of the British waiting for the Graf Spee to come out and fight, the captain of the Graf Spee decided that he would rather save all his men and loose his ship than loose all of both. So, thinking hits, he blew up the Graf Spee, preventing the British from capturing her or sinking her.