They are concepts that started US involvement in World War One.
The Lusitania was a boat that sailed across the Atlantic Ocean from America to some other Allied Country in Europe. In the Atlantic Ocean the Central Powers (mainly Germany) had UBoats that sank a lot of ships travelling to and fro from the Allied forces. The Lusitainia was sunk on it's voyage to Europe.
The Allies sunk German Uboats. Uboat, not you-boat. Uboats stand for Unterseeboot - undersea boat.
The invention of radar helped the Allies to locate and sink the German U Boats.
Two theories which can operate in tandem or separately: Hitler wanted to keep his army in the Courland in the vain hope that it would act as a threat to the Russian right flank when he was able to counter-attack. The second theory is that he wanted to keep control of Baltic coastline so that his UBoats, especially the new type XXI could train. They would be part of his new UBoat assault that he hoped would turn the war around. As we see in both cases Hitler was suffering from some delusions.
I think you wanted to ask why did the US join the allies etc,tough question because the USA at the start of WW2 was against the idea of involvement in another European war,both the government and the general public,however the German blitz on London gained Britain much public support in the US,also US ships were being sunk by UBoats in Germanys attempt to starve Britain inflaming public opinion,by now the US was by now acting beyond its neutral position and supplying Britain with war goods,so the stage was set,the Japanese attack on pearl harbour in dec 41 did the rest,with the US now at war with Japan,Hitler now declared war on the US,so now the US that had been torn between its policy of isolation,and sympathy for Britain and China(China had been invaded by Japan 2 yrs before the war in Europe) was now commited to the cause of ending German and Japanese aggression,finding common ground with Churchill US president Roosevelt now found himself also allied with Stalin the leader of the USSR that had been struggling for survival after Hitlers invasion of Russia, So it was Hitlers mistake to declare war on the USA at a time when Britain was still holding out,and the soviet armies were giving the Germans their first major setback at the gates of Moscow,Roosevelt had promised the US public he would keep them out of the war,but in December 41 first Japan then a few days later Germany gave him no choice,
Yeah I actually think the lusitania was one of the first boats sunk from a Uboat
Yes the Germans created uboats, they have had them since the dawn of time, litterally
The Lusitania was a boat that sailed across the Atlantic Ocean from America to some other Allied Country in Europe. In the Atlantic Ocean the Central Powers (mainly Germany) had UBoats that sank a lot of ships travelling to and fro from the Allied forces. The Lusitainia was sunk on it's voyage to Europe.
The Allies sunk German Uboats. Uboat, not you-boat. Uboats stand for Unterseeboot - undersea boat.
The submarines attacked Pearl Harbor
a group of German uboats that hunted Allied and US ships
the u boat is a submarine. it was made to hit and sink British ships
It sank up to 2,779 ships in world war 2
The German government announced unrestricted submarine warfare against ANY ship sailing into Allied waters would be subject to surprise attack. Along with the German sabotage of Black Tom island powder magazine in 1916, the sinking of the Lusitania with American citizens onboard, and the Zimmerman telegram (German foreign secretary) that encouraged Mexico to ally with Germany and Mexico would win bad the former Mexican territory in the US South West, lead President Wilson to call for war. There were additional reasons, but I feel these were the Big Four.U Boats were causing havoc on the trade routes between the US and Europe by destroying merchant ships. One of the biggest factors was the sinking of the Ocean Liner "Lusitania" by German UBoats, of the 139 US Citizens on board 128 were killed. Also, when Germany began a Submarine Campaign against Britain President Wilson had previously stated he would hold Germany responsible if that were to occur.
The invention of radar helped the Allies to locate and sink the German U Boats.
the Germans used uboats and kept torpedoing cargo ships so the inhabitants didn't get the supplies they needed
The Germans then threatened to use only Uboats for war and blew up a few ships.