Not to be a negative nancy here but I think this idea is terrible.
In a -different- game it would work wonders, but not so much in SK. What you are doing with this is making some NPC's high value targets and sort of trying to force players to defend them, as I understand it.
So here's the problem. Faction A during time period X has more people than faction B, so they group up and attack, usually when faction A isn't even online. This eventually causes faction A's players to lose interest in the game and log out for extended periods of time, eventually dropping their characters or the game entirely. This is pretty much what you are currently achieving with attacking a certain country which happens to be one of the weakest in the game at the moment, but that's besides the main point.
This said, I like the thought behind your idea, making people want to be more involved in wars. It just needs to be a bit more considerate toward both sides.
So here's the counter-suggestion:
The Weekend War Battle System!I'll keep it stupid simple.
Code:
Faction A is at war with faction B. During weekend 1, they declare they will be attacking faction B at battleground X.
From weekend 1 until weekend 2, both factions are informed of this battle every 1-2 RL hours by an automated message in their tribunal.
At weekend 2, the battle occurs at battleground X. If the defenders don't show that's their own damn fault. The defenders 'cabal gate' prior to the battle initiating behind the defenses available at battleground X, and the two (hopefully) huge battlegroups duke it out.
You can modify this a lot of ways, like during a weekend battle there could be 3 or so CP's as you said which your faction needs to take to win within the span of 1 hour, so you can split your groups and the enemy can split their defenders etc.
In conclusion, this counter-suggestion's purpose is to actually promote group vs group pvp and make people want to be involved in it, make people know when to log in for it, rather than just allow anyone who happens to have the larger force at time X to go and ninja CP's when the other side is off.
It also creates interesting strategies. You can for example, if you are allied with another country, declare you will be fighting 2 countries. Then you are forcing the enemy to sort of guess which one you'll be attacking and split their focus, while you and your ally country are only going to attack 1 etc.
[edited because I can't type for love]
Limiting them to a weekend is a great idea.