There are several pairs of countries in the world today that are sworn enemies, and the relationship between them is difficult to reconcile and even more difficult to resolve. So the diplomatic service tries to spend less time and effort between them, which will not be effective.
The first pair of U.S.-Russia relations
The reason why the United States and Russia became sworn enemies began because of the values that the United States was a capitalist country, the Soviet Union was the world's first socialist country, and in the years of the Cold War, they were incompatible. Later, the battle for the world boss, who is the champion, who is the runner-up, there must be a battle to be divided, but they have not been in the ring, so they are still entangled.
The second pair, Pakistan and India
The contradictions between Pakistan and India are mainly Kashmir conflicts, but there are also some religious issues, and it is difficult for China to maintain close relations with both countries at the same time.
The third pair, Israel and numerous Arab countries. Their contradictions are so deep-seated that they are almost irreconcilable.
The fourth pair, Iran and Saudi Arabia, they are both oil producers, but they are not competing for oil, but for religious reasons.
Fifth pair, North and South Korea. The DPRK and The ROK are originally a country, and the reason why they have unsolvable knots is mainly because the big powers are stirring up trouble. Inter-Korean relations, given time, may be resolved.
Seventh pair, Britain and Argentina. The Anglo-Afghan contradiction is mainly a dispute over the Falklands, and their relationship is difficult to reconcile, too realistic, and the struggle for territory is alive and free.
