Venezuela's President Nicolas Maduro (R) and Nicaragua's President Daniel Ortega shake hands during a ceremony with Sandinista supporters in Managua in this March 13, 2015 picture provided by Miraflores Palace. Hundreds of Sandinistas marched in the avenues in support of Maduro's government and against the new sanctions imposed by the U.S. on a group of officials in Venezuela. Picture taken March 13, 2015. REUTERS/Miraflores Palace/Handout via Reuters (NICARAGUA - Tags: POLITICS) ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS