Typically, NAIs are geographical points or areas, but you will find additional practices that may be very helpful. For example:
a. Linear, like in a line the enemy must get across, or a course the enemy might follow.
b. Spatial, as with a box the enemy may fly or swim through.
c. General, as an example 5 kilometer behind the lead element.
d. The people of ethnic Kazars.
age. At Ip 127.0.0.0
g.. Within a specific SIPRNET database
Those final three NAIs probably look a little strange to those people who do each of their training in the NTC or within a BCTP demand post exercise!