look it up...it will give u all the definitions of the word build up.
Churchill's overall message in his 1946 speech "The Sinews of Peace" is that even though America, Britain and other powerful states have won the Second World War, the world at large still hasn't managed to establish a long-lasting and stable peace. The greatest threats are war and terror.
The phrase "Iron Curtain" invigorates this thesis. It divides Europe into two halves, the democratic West and the Russia-influenced, communist and totalitarian East. This term is extremely rich in associations; the curtain means division which breaks up the post-war prosperity and unity that all the states should strive for. The fact that it is "iron" associates war and destruction, which is why many historians think that this speech marked the beginning of the Cold War.
Answer:
It's used in order to punish other nations.
Explanation:
From Hagrid and a book i read they stated,"In old times, tariffs was used heavily on countries that dominating nations have conquered as a form of punishment towards the citizens in order to effectively command/control them. It's simply like how authorities punish criminals."
stated so this answer is right (plus I read something about this0
Revolutionary............................