“…Ukraine's defense is interesting considering previous work on how subnational self-governing patrols contribute to collective security (Arjona, 2016;Escalante, 2020; and links between political structure and collective security (Frey and Luechinger, 2003;Enders and Sandler, 2006). Another line of research considers how Russia's institutions contributed to Vladimir Putin's decision to invade Ukraine, including the institutional foundations of Russian support for Putin's war (Trantidis, 2024), as well as how it transitioned from a middle-income capitalist democracy to a totalitarian warmongering state through encouraging rent-seeking and patronage systems (Hebert and Krasnozhon, 2024). Procurement reforms provide another contrast with Russia, where backsliding and corruption have characterized institutional change over the past decade.…”