Civilization V: The Celtic Chronicle, part 3 (520 A.D. to 1450 A.D.)
Dark clouds gather
805 A.D.: Celtic scouts capture a group of German civilians near the border and send them southward into serfhood.
I did a little bit of eyebrow-raising here. For some reason, Germany just marched a group of defenseless workers right up to my border. They are much slower and have a smaller vision range than cheaply-built Scouts, so I don't know why they'd be using them as spies.
The Celts encounter the city-state of Brussels, North of London. Many waffles are had!
I've met my first City-State, which are independent countries that can't expand or conquer new territory. Fostering good relations with them will allow me to make them trading partners, and gain their aid in wars. Unfortunately, I don't have the gold right now to build influence with them.
820 A.D.: France, having been at peace with the Celts for almost 2000 years, publicly denounces their former allies. As PC Elitism spreads through France, the upper class grows concerned that it may lead to the same fate befalling them as did the English monarchy in the 3rd Century.
And just like that, the power balance shifts again. The French are still fighting the Russians, who have also declared war on me. The fact that we have a shared enemy means open conflict is unlikely for now. It's still a cause for concern, however.
850 A.D.: A massive German horde is spotted outside London, led by two Great Generals. The Celts send one of their own finest generals and a battalion of seasoned Picts North up the road to meet them.
Whoa. Whoa, whoa, whoa. When the Germans moved into my vision range, I literally lost my breath. Their army is GIGANTIC. They have more troops in this one formation than I could match, even if I brought up all of my forces from the home cities in the South. I expected them to maybe throw a few men my way before being turned back and asking for peace. I was not prepared for this onslaught at all.
To make matters worse, they are made up mostly of the Landsknecht, a German unique unit that is more effective than the Pikeman it replaces, and is higher in tech than any melee troops I currently possess.
I've never lost a major war in Civ this far into a game before. This is looking like it could break my streak.