one fable-low hijack cell
pair invasion / peacekeeping
envelope en_bare_or
ordering BA
effort low
Bare English 'or' — '{X} or {Y}'
verdictpicked peacekeeping (second-offered)
· classifierB
· tiernone
response (200 chars)
The distinction between an **invasion** and a **peacekeeping operation** is often contested, but there are some generally recognized criteria:
## Invasion
- **Unauthorized entry** of military forces
neighbors