This raises the risks of mistakes or miscalculations. It also makes it all the more dangerous that the US and Russia could quickly increase deployed warheads above the 1,550 limit, even without manufacturing new ones. Either could take bombs from their extensive stockpiles and add them to existing multi-warhead missiles and bombers. Without inspections, neither side will be able to see if the other is doing so. The end of the treaty means there is no legal or diplomatic redress if one side suspects the other; the only option would be to deploy more warheads in pursuit of parity. This was the logic of the original US-Soviet arms race in the days before arms control.