The timing of the Prusso-Italian alliance of 8 April 1866 was perfect, because all other European powers were either bound by alliances that forbade them from entering the conflict, or had domestic problems that had priority. Britain had no stake economically or politically in war between Prussia and Austria. Russia was unlikely to enter on the side of Austria, due to ill will over Austrian support of the anti-Russian alliance during the Crimean War and Prussia had stood by Russia during the January Uprising in Poland, signing the Alvensleben Convention of February 1863 with Russia, whereas Austria had not.