Complex sentence: In 1806 the combined armies of Jaipur, Mewar and Bikaner declared war on Marwar, in order to install a pretender as the Maharaja of Marwar.
Split into simpler sentences: In 1806 the combined armies of Jaipur, Mewar and Bikaner declared war on Marwar. In order to install a pretender as the Maharaja of Marwar.