What does it take to gain Independence?

It’s a question for a discussion.

We had a celebration of our Independence Day a few days ago, I gathered some ideas from the occasion:

• It takes multiple attempts;
• It costs lives;
• Costs time;
• If it’s forgotten, one might need Independence of Independence(or it can be for nothing in the first place);
• Everyone must agree(but they never do…);
• New small communities form/loss of touch;

What else? Any arguments?(sorry, I have no proof of my own:)) What could substitute Independence?