The 10 countries with most battles won in history, referenced on Wikipedia (10,624).
List of every battle: https://docs.google.com/document/d/1WOVVkcd-AySAAoBC3VYp5zZkhRzMdNl5Ghykh-afhwY/
Battles are included only if they have a Wikipedia article
Each country can only have 1 predecessor state at the same time (eg. the UK's predecessor is England, but not Scotland)