In order to give China and Russia, US President Donald Trump said that arsenal of nuclear weapons will build up on US. Then, Russia denies that they did violated the 1987 Intermediate-Range Nuclear Forces (INF) treaty. But Nikolai Patrushev who Russia's Security Council Secretary said the Kremlin was ok to co-op with the US because of the INF issue. Overall, the US insists they should use nuclear arsenal to protect and they think China and Russia do not follow the construct lead the situation happen.