Everybody might know about the cold war during 1941-1991 which was a state of geopolitical tension after WWII between U.S and Soviet Union. The term "cold" is used because there was no large-scale fighting directly between the two sides, but they each supported major regional wars known as proxy war. Now, regarding to poisoned to Russian agent Sergal, the relations between the U.S, the western countries including UK and Russia becomes strongly heading to negative impact. Some political scientists think that they worried about the cold war becomes again. What of your opinions?