Nuclear war refers to the war used by both sides as weapons such as atomic bombs, hydrogen bombs, neutron bombs, and various missiles that carry them, bombers, submarines, and the like.
There are various forms of scale, from limited to full scale, but it is believed that in any case, a great deal of damage will occur. 2020, To date, the actual use of nuclear weapons has been only two atomic bombings of the United States of America to Japan in World War II.
Although there has been no nuclear war between hostile nations, there is a crisis that could cause a nuclear war, such as the Cuban crisis and the 2017 North Korean crisis.
Intermediate-Range Nuclear Forces Treaty pointed out that in the 2010s, Russia advanced the development of cruise missiles, which the United States violated. A 2014 report to the US Congress stated that Russia violated the treaty.
In this way, the United States and Russia have often conflicted over the violation of the treaty, and the United States, which was concerned that China, which is not participating in the treaty, is promoting missile development, Donald President Trump has announced that he will abandon this treaty.
On February 1, 2019, the United States announced that it had notified the Russian Federation of the termination of the treaty, and at the same time announced that it would cease to fulfill its obligations from the following day.
In response to this, the Russian Federation also suspended the fulfillment of its obligations under the Convention on the 2nd.
This treaty expired on August 2, 2019, half a year later as planned.