Mills finished behind world champion Jakob Ingebrigtsen before Glave secured a medal on his debut appearance at a major senior championship.
An inspired Irish quartet led by Rhasidat Adeleke outstripped Femke Bol's favoured Dutch team to snatch gold in a thrilling 4x400m mixed relay at the European championships on Friday."And that is exactly what we did, championship record, we all delivered our own individual performances, we all performed together really well as a team and trusted each other to do what we needed to do and we come home with that gold medal which we do not often do in Ireland."
Katarina Johnson-Thompson has suffered an Olympic injury scare after withdrawing from the European Athletics Championship on Friday night with pain in her right leg.