Final answer:
The question refers to an unclear historical event involving individuals named 'Eret' and 'George'. However, no such event aligns with the provided historical references, which cover different monarchs and periods in European history. Clarification is needed to accurately address the query.
Step-by-step explanation:
The question seems to misconstrue historical events, as there is no clear reference to any specific individual named 'Eret' who was dethroned and replaced by someone named 'George' because of involvement in war in mainstream historical records. Moreover, the information provided mostly covers different periods and monarchs in history, such as the Glorious Revolution, the Wars of Roses, and the ascension of King George I of the Hanoverian dynasty in Britain. However, it may relate to historical changes in monarchy, contested successions, or the rise and fall of different rulers which were frequent in European history.
It's important to note that if 'Eret' refers to a figure from a game, work of fiction, or other non-historical source, this would not be covered in any historical records, and further clarification would be needed to provide an accurate answer as the information provided primarily focuses on actual historical monarchs and events.