To Capitalize or not to Capitalize Independence?

My take would be that the Turkish War of Independence (which I'm guessing is what you're referring to because of the year, but it doesn't really matter if not), is capitalised, but the general description of the state of being independent should not be.

In this Wikipedia article on the Turkish war of Independence, we have

"the burgeoning independence movement"

"its right to life and independence – its entire future"

"Turkish independence"

Note that none of them capitalize "independence".

It should be lower cased.

Independence is a concept, and concepts are merely nouns and do not get upper-cased.

You only capitalize ideas like that as part of names; the War of Independence, or Independence Day, or so on.

You would similarly only capitalize words like "republic" or "democracy" when they're in names, such as the Democratic People's Republic of Korea (North Korea) or the Republican or Democratic Parties of the United States. The fact that the United States is a democratic republic should be reported in lower case.