Royal Canadian Navy was the unit that Henry served for the longest time.
During the World War 2, the Battle of the Atlantic was the longest campaign of the Second World War and the most important. Canada's enormous effort in the struggle was crucial to Allied victory and it was the best remembered for its deeds during the Battle of the Atlantic.
Beginning the war with a mere 13 vessels and 3,000 men, the Royal Canadian Navy
ended it with 373 fighting ships and over 90,000 men. In the crisis of 1940, when German armies were marching into France, four
destroyers of the RCN, were sent to the English Channel where they provided assist
in the evacuation of forces, landed military troops, and carried out
demolitions. After the fall of France the Canadian destroyers joined the Royal
Navy in the struggle to protect the southwestern approaches to Britain where
German submarines vigorously pressed their attacks. By July 1940 all ocean
shipping had to be re-routed around the north of Ireland and through the Irish
Sea.
With systemetic and methodical navy, Canada won the numerous battles in Atlantic. Royal Canadian Navy did not only protected its own country but also helped other countries. In any battles in the sea, Royal Canada Navy got victory after victory. To other countries. Royal Canadian Navy was object of fear.
William Henry Isaac Atkinson one of the hero during the World War 2. He was the highest scoring fighter ace of the Royal Canadian Navy during the Second World War and the last pilot from The common wealth to become an ace during the war. Because of his great achievements during the war, he promoted to Commender. He decided to remain in Roya Canadian Navy and got respect from people and his co-workers.
William Henry Isaac Atkinson was born on 22 April 1923, and raised at Minnedosa in Manitoba, later moving to Winnepeg. When he was 19years old, he volunteered to the World War 2 as a aviator in January 1943. He was sent to United Kindom to train basic skill for steering airplane. After finishing his first training, he came back to Canada and got another training. Because of his outstanding ablitiy in flying, his rank was promoted one by one during traing in United Kindom and Canada.
Having finished his flying training, Atkinson was posted to the Grumman-Hellcat-equipped 1884 Naval Air Squadron. In January 1945, his unit got the mission that bombed the Japanese oil station at Palembang and Sumatra. Those were very important place to Japan to fuel their airplane. These plants produced 50 percent of Japan's oil and 75 percent of their aviation fuel. Atkinson took part in the operations on 24 and 29 January
He got the most successful achievements during April 1945. He shot down enemies's plane in the battle field. His total for April was three confirmed, two probables and one shared. While he contributed for his country, his airplane was badly damaged. He had to use another airplane unavoidably. Although he was not familiar with his new airplane, he shot down three of four enemies's airpalne during the operation. Atkinson's success led to his being mentioned in dispathches and awarded a Distinguished Service Cross.
After the war, he transferred to Royal Canadian Navy and he finally promoted to Commender in 1962.
Max Kennedy Horton passed into H.M.S. "Britannia" in September 1898 and after being promoted Sub-Lieutenant served mostly in submarines.
During the first two years of World War One he commanded the submarine E.9 of 800 tons, one of the first ocean going submarines.
When the war happened, Horten was sent with others U-boat to protect the inshore waters of the Heligoland Bight and at dawn on the 13th September 1914. Horton brought E.9 to periscope depth about six miles S.S.W. of Heligoland Harbour. On his first look around he sighted the German light cruiser S.M.S. Hela was emerging from a clearing in the early morning mist.Horton fired two torpedoes and dived deep. The "Hela" was hit center of the ship and sank. Despite being hunted for the rest of the day, and with E.9's batteries dangerously low, Horton managed to bring E.9 safely back to base at Harwich. Three weeks later Horton was off the mouth of the river Ems, where navigation was dangerous and the narrow channels between the sandbanks were heavily guarded by destroyers. Disgusted by not finding bigger game, Horton carefully stalked and at close range torpedoed the German destroyer S. 116. For these achievements Horton was awarded the D.S.O. and promotted to Commander. 
In October 1914, E.9 passed through the Sound between Denmark and Sweden into the Baltic. It was a dangerous passage, as he had to negotiate a minefield and was forced down repeatedly by enemy destroyers. Safely through, E.9 vent to Reval where E.9 and a few other British submarines came under the orders of Admiral von Essen, the Russian Commander-in-Chief. Operating from Reval E.9 did a large number of patrols, sinking a destroyer and heavily damaging the German heavy cruiser S.M.S. Prinz Adalbert, besides intercepting and sinking a large number of merchant ships carrying the vital iron ore from Sweden to Germany. Returning from Russia in 1915, Max Horton assumed command of the very large submarine J.6 and did a number of strenuous patrols in the North Sea. Later Horton was selected to command and supervise the building of the experimental submarine M.1. M.1 was a notable departure from existing design, carrying, in addition to M.1's torpedo armament a twelve-inc
h gun mounted in a turret.
U-boat
U-boat, also known as submarine, appeared during world war 1. The countries which are members of Triple Entente blocked the supplies going to German. So German need to invent a new naval weapon to prevent their supplies and equipment. They decided to invent submarine called U- boat. U-boat was a new naval weapon inventioned by Germans to attack the convoys that supplied the Triple Entente throughout World War I. And finally, German's U- boat made America to enter the war.
The U-boat of Allied Powers
When the World War 1 began, British had many U-boats then other countries. However, most of them were so small that they couldn't use in major fight. British navy had 8 "D" size of U-boat. They also had several "E" size of U- boat. "E" size of U-boat can be used in real operation but the leading members of government didn't believe the value of using the U-boat. So Biritish's U-boat didn't be used lot at the begining of the war. Compared with German and other countries, British's U-boat wasn't very powerful. They usually used to attack the sailing boat which transported supplies to German and other countries. Because another countries had navy as powerful as British and it led the leading members of government didn't believe the British's U-boat. However, British achieved the great job when fought with Osman Truk Empire, one of the alliance of German, at the Baltic Sea.
