Editors. "Russians invade Danubian Principalities at Turkey's request". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18169, accessed 23 May 2013.]
Russian forces invade the Danubian Principalities (present-day Romania) at the request of the Ottoman Turks, in order to put down revolts there.