Complex sentence: As a result, on October 31,1876 Russia issued an ultimatum requiring the Ottoman Empire to stop the hostilities and sign a new truce with Serbia within 48 hours; this was backed by the partial mobilization of the Russian Army (up to 20 divisions).
Split into simpler sentences: As a result, on October 31,1876 Russia issued an ultimatum requiring the Ottoman Empire to stop the hostilities and sign a new truce with Serbia within 48 hours. This was supported by the partial mobilization of the Russian Army (up to 20 divisions).