The Chechnyan rebels
National threat to the security
Posing a threat - It is what is says it is: Something that stands as a threat for example: "Bob has no qualifications and is working for a company. John applies for Bob's position and has various degrees in that sector" - This would pose a threat to bob as his job could be taken by John.
The terrorist threat still exists.
Bravo
Level I
No the threat must instill terror, usually through violence.
To prevent robots from posing any threat to humans.
Terrorist Attack
Usually it means a bomb or terrorist threat.
Terrorist
Terrorist Attack
One of the rules is that you can engage an individual if he is armed and posing a threat to your safety.