On the recordJuly 14, 1998
A permanent resident alien is an alien who petitions the Immigration and Naturalization Service for his status, for which he is then issued a green card under the provisions of a quota number that is given to that person. By those conditions, a permanent resident alien is subject to the draft in times of a national emergency. I had several friends who were permanent resident aliens who were Vietnam veterans. They were subjected to the draft. Also, a permanent resident alien, after 3 years serving in the military, can also become a U.S. citizen, if he so wishes.
Source
govinfo.gov
