How do you Export and Implement Animation Switching(DAZ FBX)

So ok, i know you're supposed to export Animations from DAZ as FBX.
So let's say you have
standby, punch, kick, walk
(standby.fbx, punch.fbx, kick.fbx, walk.fbx)

Then in Unity, where do you put those animations so that Unity will find them?
And then in the script how do you do it?

It's been long since i tried this...because i haven't done Unity in a while and when i tried i never really found out how to do it.

Anyways would it be something like this:

"if( enemy sees player)
make enemy currentAnimation = walk
and make him approach the player
"
if(at random decide to do it)
currentAnimation = punch

in other words, you just need a currentAnimation variable and then you just set it to the name of the FBX animation you want? I would be doing it in C# so what type should i use for currentAnimation?

is it something like
Animation currentAnimation ?