Nowadays, terrorism happens to be an inevitable challenge for the new 21^st century modern globalized society. Within this context this paper reveals multiple aspects of IT being a key enabler for culturally and linguistically diverse (CALD) communities' operationalization of the Comprehensive Approach – considered as a tool for countering terrorism. Apart from this, some positive examples of multinational project activities are given based on the latest NATO governance experience, including the new idea for ‘smart defense’ and addressing the modern world resilient societies' security approaches.