JAFFNA, SRI LANKA - OCTOBER 25:  A Sri Lankan ethnic Tamil paddy farmer uses tractor as prepare field for cultivate  on October 25, 2015 in Mallavi, Sri Lanka. Sri Lankan Prime Minister, Ranil Wickremesinghe, seeks international assistance ahead of a donor conference for the social and economic development of the war ravaged areas in the country.  (Photo by Buddhika Weerasinghe/Getty Images))  (Photo by Buddhika Weerasinghe/Getty Images)