20 Military patches WWI-WW2- Vietnam- present

This is a group of old Military patches from a large collection. I do not know anything about military patches but will do my best to answer all questions to the best of my ability. Some seem to be quite old and are kind of floppy though a couple are stiff and may be newer. Thanks, and please see pictures- maybe the one you are looking for is in this auction!

The labels read as follows

13th engineering WWI, usa systems and engineering, 219th battlefield surveillance, 128th aviation brigade, usa military police brigade hawaii, army resource department of defense and joint activist, 91st infantry brigade, 15th sustainment brigade, 29th infantry brigade, 1st army, army artillary school, service and supply advance section WWI, united nations command, 160th signal brigade, arng civil spt teams WMD, 20th support command, 479th artillary brigade, 107th acav reg, 30th armored brigade combat team, 411th engineering brigade