Why hasn't their been a huge nuclear disaster?

More context please

Explanation:

Unless you asking that generally then it's because it would cause A massive cold war and well you can imagine that would be bad for weaker countries

The Treaty on the Prohibition of Nuclear Weapons was renewed a few months ago I believe, so nuclear disaster would be incapable of occurring until it ends, if it does. Because the countries might decide to keep renewing it, in order to keep peace. Though another reason would be because we are advancing in technology so over time there would be less occurrences as such of the Chernobyl Incident.

cruel, heartless

explanation:

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.