unfortify
/ˌʌnˈfɔrtɪfaɪ/Definitions
1. verb
to remove or weaken the defenses or fortifications of a place or a system
“The city council voted to unfortify the old walls, citing the high maintenance costs.”
2. verb
to make (something) less strong or less well-protected
“The harsh weather conditions were used to unfortify the crops, leaving them vulnerable to pests.”
3. noun
the act of removing or weakening the defenses or fortifications of a place or a system
“The unfortification of the city’s defenses led to its capture by the enemy.”