Corrections in red.  Stylistics in blue.

Winston Churchill

There have been many people who have done important things for their countries, but I wish to say something about Winston Churchill, because he was an excellent example of a man who possessed the most important characteristics for any politician.

First of all, Churchill had an insight. That means, he could see the facts that other people didn't even notice, [1] and, based on those facts, he could also understand what events might happen. For example, when Hitler had risen in power, and when he had begun to rebuild the German army in the mid 1930's, Winton Churchill was the one of only a few politicians who said that it was really dangerous for Europe. Of course today it looks obviously, but at that time only few people could understand the dangers of the [2] Nazi’s militarism.

The second characteristic of Winston Churchill was perseverance. For instance, when the Allied forces had been defeated in the Battle for France in 1940, he said to the British nation: “I can promise you nothing but blood, sweat, and tears. But I swear to you that we’ll never surrender”. And yes, he didn’t even think about surrendering in the most difficult period in British history, but he stayed the course, [3] and led his nation to victory.

And the third in order (but not in importance) characteristic of his was flexibility. For example, to unite the British nation in the face of the enemy, Churchill cast aside all his prejudices and formed a Coalition Government with his former political rivals. When Hitler had attacked the Soviet Union, Churchill said, “No one has been a more consistent opponent of Communism than I have for the last twenty-five years. I will unsay no word that I have spoken about it. But all this fades away before the spectacle which is now unfolding. The past with its crimes, its follies and its tragedies, flashes away”.  [4]

Those are the three main reasons why I wanted to write about Winston Churchill.

[1] Variants:  "That means he could see facts that others didn't even notice . . ."

                    "That means he could see facts unnoticed by other people . . ."

[2]  I'm not sure what you meant by "treatment".  Perhaps you meant how other countries dealt with the Nazi's militarism?

[3]  Idiom:  "to stay the course"  -- to continue doing something which is very difficult

[4]  I was able to find Churchill's actual quote at:   http://www.winstonchurchill.org/learn/speeches/speeches-of-winston-churchill/809-the-fourth-climacteric