So...I just accidentally declared war against eight countries instead of one in Victoria. With Russia having lost their status as a great power after having been beaten to a pulp by Britain, I decided to take Karelia from them, now that I had rebuilt my military. So I declared war against Russia in 1864. Unfortunately, I had apparently unpaused the game and not realized while I did this, so Russia formed an alliance with Prussia literally half a second before I pressed the "Declare War" button, so now I'm at war with Russia, Prussia, Holstein, Baden, Hannover, Bavaria, Mecklenburg and the Netherlands. I asked Britain for help but they said "Lol, nope".
Not all that great.