Question

maintaining nuclear weapon is imperative for national security

Answer 1

In the growing world every country try to reach the power that other can't achieve and in that try they are relying on the nuclear power so making of the nuclear power for our country become also necessary in order to keep in balance in the power of the region other wise other neighboring  countries would be continuous threat  to the national security.

The nuclear weapon should be made only to maintain the power balance , not for the threatening purpose or to use them against any other country. But their existence is become necessary when other neighbors have it too. These weapons ensures that no body is going to attack the country outside as they know the country also have nuclear weapon that can destroy them .