Abundance results for the α-elements. Literature data for the Milky Way (black dots) are from: halo – Roederer et al. (2014); bulge – Johnson et al. (2012, 2014); disks – Bensby et al. (2014). Pal 5 is shown as a red star symbol, while other GCs are from Sbordone et al. (2015) – NGC 5053, 5634 (green squares); Cohen (2014); Sbordone et al. (2007); Mottini et al. (2008); Carretta et al. (2014) for Pal 12, Ter 7, Arp 2, Ter 8, and M 54 (magenta diamonds). Furthermore, M 5 is shown as a cyan triangle (Ivans et al. 2001), the outer halo GCs Pal 3 and Pal 4 as open circles (Koch et al. 2009; Koch & Côté 2010), and the disrupted NGC 5466 as an orange hexagon (Lamb et al. 2015).