Unrestricted submarine warfare, which became prominent in World War I, meant that submarines could sink any time of vessel at any time without warning. Before this, they had to surface first and place crews on lifeboats.
Answer:I don’t know what the main question is
Explanation:
The first one is correct. In a planned economy, also known as a command economy, the state determines prices and allocates resources.
They are weird blah blah blah
Answer:
i dont think that russia is responsable for WWI but germany is, it had the resources to end it by withdrawing its blank cheque which offered suport to austria for its invasion to serbia. russian leaders knew that it would have been in a much stronger position to fight in two years, after having completed its rearmament plan.