1548 to 1564; The end of the beginning.
Figthing several fronts at the same time was beginning to become the order of the day. By 1548 it was war on two seperate fronts: versus Prussia/England and versus Sibir.
No, make that three: revolts too! As I once noted in 1558 revoltrisk reached an alarming level as the battle ebbed and flowed. I'm not quite sure how warexhaustion is calculated, but obviously it's more than a function of time (in war). In 1558 Welikia could be seen to have a revoltrisk of 24%! The smallest part, actually was religion (catholic), while warexhaustion really weighed. Welikia had just been captured from PL and perhaps inherited their warehaustion? Another typical point of trouble was Astrakhan, but I was generally ignoring it since the sibir troops had a prepference of going there. I had the Astrakhan rebelcity under siege in 1548 and recaptured it, but lost it again later. As usual I didn't find the rewards for prompt rebelslaying very high.
It was a messy process in any case to battle Prussia with rebels breathing down my neck in Welikia, Kurland and Livonia (occasionally the rest of the baltic coast too). The Danzig fort was a tough nut to crack, but Danzig eventually surrendered in 1550 and as it was the only province of Prussia, Prussia was annexed. As usual I should perhaps have worried about the warnings that protestant countries were going to be alarmed about it, but at that time, getting rid of Englands waging war was more important.
The annexation of Prussia yielded our navy 2 warships and two transporters that had kept slipping away unharmed from our navalbattles. Very nice!
The next DoW came in 1551 and from an unexpected and unwelcome angle: Crimea. I know that it probably doesn't scare anyone to hear, but at this time it was an event of considerable concern. Crimea had been doing next to nothing for most of the century and had simply hoarded army. I could see about 150k in 3 armies in the borderprovinces alone.
The crimeans wasted no time and promptly invaded Donetsk with a 60+k army. A large part of this army was artillery and Donetsk surrendered within few months. The crimean army continued its' advance as did their other armies (they were delayed by terrain though).
Understand it, that at this point warexhaustion was killing me, loans were piling up and I had hurried my campaign against Prussia in order to be able to end all wars shortly after with Sibir with the gain of Irgiz. However, even with the usual help from Father Frost, it would do a lot of damage before those crimeans could be turned around.
For these reasons, I broke off from my usual stiffneck policy and accepted the crimean peacedemand for Donetsk. Donetsk was in a bad position for defending anyway and it was a small province. An affordable price to pay and a province that I planned to reconquer later. Peace was signed in 1551.
War with Sibir then continued and eventually lead to the desired peaceterms of Irgiz.....only just too late to bring me total peace.
Before the dust could settle, Poland-Lithuania were back for more rash. Allthough troubled, I was happy to accept the chance to get Tula at last. The PL effort was even more bleak than it used to and Spain did not show up with any considerable force. During this war I managed to lay siege to and conquer a number of PL cities - including their capital. They generally tried to go in the direction of Kurland, Prussia or Welikia and in general ended up fighting hordes of rebels

. In the midst of the turmoil it was nice to note in 1558 that at least all nationalism had gone from the rebelplagued Kurland!
A new enemy was now ready to join the fray: Persia declared war in 1555 and dragged Portugal, Venice and the Hanseatic League with them into the battle. Apart from the HL, the allies did not interfere and the HL were shut out (except for seabattles) when I made peace with PL sometimes around 1560.
And guess what: finally Tula and Smolensk were offered! The corridor to Moscow which the PLs had used a few times (unsucessfully though) had been shut.
The persians were not at all holding back. Fortunately their attack was much complicated by a lot of revolts in Astrakhan (muslem tolerance zero) which was the provinces that connected Persia to Russia. Persia did manage to lay siege to Astrakhan and Orenburg, however.
The peace on the northern front made a difference with an increasing cashflow that even allowed me to start paying back my loans. I like to get rid of them when they are due so they don't become too costly. A few of them had allready been extended and were at 12% interest.
I think it is fair to say that the AI didn't do very well in this case. Allthough it did deploy up through my territory, it didn't actually send large enough armies so I was able to build up armies in the unsieged provinces, gather them for a counterattack and push the persians back. Russia was gifted by one leader, Kourbski, in this period, but due to the usual zig-zag DoWs, I was reluctant to send very much army from the north to the south. Perhaps the rebellions in Astrakhan cut off the AI reinforcements?
Persia did manage to capture Astrakhan, and moved their army on. Then rebels rose again and recaptured the city to Russia! Nice!
Eventually I managed to defeat their few armies which had been much reduced by attritions and counterattack into Aserbadjan, conquering the city. At that point Persia offered a white peace. A meager performance by a fairly strong enemy, but I guess they took a marginal chance when Russia was at war with PL? I accepted quickly as footsteps from a foreign diplomat carrying a DoW could almost be heard on the stairs of the Zar palace.
By 1564 Russia was in a historical situation: peace all over the empire! That was the end to about about 30 years uninterrupted war!
As peace descended upon Russia, another benefit from the failed persian attack could be harvested: Astrakhan had fallen below 5k and was converted into an orthodox province. The major troublemaker was gone.
With this outcome I had gained a favourable border to the muslim countries because there was rivers much of the way. There was still a small Sibir nation that I needed to get rid off, but I was waiting for them to do me the favour of DoWing so I hadn't to (Russia gets only 1 diplomat per year which is better spent at other tasks). In the meantime I began TPing the territories between the Caspian and Black seas. One province had chinawares, which added nicely to the Novgorod CoT.
In all, I for the first time felt confident that I was safe. With the current stregnth I had proven that I could fight off all the attacks of the kind I had seen untill then. Untill then...
Ending stats 1564:
Provinces:38 (plus TPs). Added: Eastern Prussia,Smolensk, Tula. Lost: Donetsk.
Army: 128/18/53
Navy:5/13/2
Wars: NONE!
Alliances: none

Income: 1133/y, 1 loan
Tech: 6/4/4/4