Mansa had a pretty sizeable stack, so I bribed Justy on him before I declared, hoping to draw his attention away.
Not much progress by 1000AD. Only taken one city and ready to take one more soon.
Justy got too powerful, so I had to bribe him off so he didn't cap Mansa.
Capital at 1000AD, with serious health issues
Dodged the capping bullet with Justy, but a few turns later Mansa capped to Ragnar instead. Despite taking several cities and
not losing a single unit (cannon rule!!), Mansa would not cap to me but then suddenly did to Ragnar...
I move on to Asoka instead.
When possible, I form a
Permanent Alliance with Justinian. Never done that before, but it looked pretty good, despite the increased tech costs. Due to events soon after, it is what saved the game for me.
During the war with isolated Asoka, he suddenly peace (lol) vassaled to Ragnar, who also had Mansa from the previous war. This caused a war with seemingly neverending fronts, because I had Indian cities in the south and the army split up to take several more Indian cities quickly.
New fronts
NW: Mansa and a huge Viking army (he took a city there earlier from Mansa)
NE: Ragnar's mainland
South: Mansa and later on Stalin
SW: Asoka, Mansa and Ragnar, plus Stalin later on.
SE: Ragnar, and later Stalin.
With a fractured and split up army, you can probably imagine the logistical and strategic nightmare
Thankfully Justinian was a PA!! He took forever to start moving, so I was on my own a long time, defending/attacking along all these fronts. But once Justinian's massive army started moving, he quickly tore through Mansa and eventually Ragnar's lone city in the west. That meant I could focus on Stalin in the south/north (mainland+former Asoka cities) and Ragnar in the east.
It was still a rough ride, but it actually was a LOT of fun. Moscow changed hands five(!) times, and I had to withdraw from failed invasions into Viking lands several times because his cannon and mounted tore me apart.
I

something fierce, so much that the capital stood for ~85% of

. Eventually I managed to hold onto Moscow, and assembled a big enough stack to invade Ragnar from both the north-east and southeast, using Moscow as staging point in the south.
A very, very tense game, that went to Infantry, MGs and Artillry. Once I had that, Ragnar couldn't keep up - though he had infantry + cannons himself in the end (I managed to mostly beat him when he had rifles, cannons and cavalry, however).
Finally it all came together, and we win
Domination in 1530AD
As you can see from the Power graph, for the entire game I was fighting with inferior forces, and there are some big battles going on.
We had some war weariness issues....
Had to run a 60%

slider to counteract WW and emancipation anger.