>>. >> reporter: they're searching for the enemy who have made their escape. but they have already vanished, blending back into the community and the landscape. >> i admire their resiliency and their conviction, for sure. there's a degree of mutual respect, but that doesn't mean we want to kill them any less. >> reporter: while america's war is finishing up soon, these brave soldiers know it's yet to be won. >> so michael, you and i were talking about during that piece, you have actually experienced something of -- a bullet coming that close. what are some of the signs, really the noise, right. >> you can hear it there she says there's been incoming round, i have been in several situations where you hear a crack. it's not pop, pop, pop. when she's running along, and says the incoming round, that has a distinct crack. and it's about the bullet flying through the air.