Evaluate the terminology and operational triggers associated with Emergency provisions in the Indian Constitution:
1. A crisis activated specifically due to war or armed rebellion is officially designated and popularly known as a 'Constitutional Emergency'.
2. The executive is constitutionally authorized to proactively declare a national crisis based on the imminent danger of aggression, prior to actual violence.
3. The 44th Constitutional Amendment legally excised the ambiguous phrase 'internal disturbance' and substituted it with 'armed rebellion'.