usmc uniforms

[patches3]

hello agian, so you may have read my two recent threads about boots and haversacks for my usmc display. i have the uniform shirt and pants but am looking to get anothe pair. i have seen different kinds and wanted to know if there is a way to tell them apart. the oone i have ahs the buttons in the shape of donuts that say u.s. marine corps. i have seen others that have stars innstead. were these used for different branches. can someone help me to tell what kind it is. thanks for any advice you hay have.

[SteveR]

The stars are usually on Army issue.