UK missile submarines on patrol have protocols that they follow to confirm that the UK hasn't been obliterated in a nuclear attack.

If those protocols are negative, the Captain will open the Letters of Last Resort.

If Nigeria had missile subs, one of the protocols they would follow would be to log in to Twitter to confirm if:

1. Oddy is still using QuotedReplies.

2. Eugene is still slandering Nas and Zidane.

3. B is still fighting Wike.

4. Yomi is still doing Indian film reviews.

If a Nigerian sub commander is unable to pick up any of the above signals, he can safely assume that Lagos, Abuja, and Port Harcourt have been destroyed and then proceed with retaliatory attacks.