Reported Statement at the time to be the worst flood Catastrophe in the nation 's history , the disaster Catastrophe decimated Cause_change_of_position_on_a_scale banana plantations and population centers after rivers flowed Motion up to above normal .

The ground sloped south-west from Bazentin ridge , divided by Willow Stream , which rose Cause_change_of_position_on_a_scale in Trônes Wood and flowed Motion past the ends of the Mametz and Fricourt spurs .

Polotsk had been captured Conquering and heavily fortified Cause_change_of_strength by the Russians under Ivan the Terrible in 1563 because the river Dwina , which led to Causation the key city of Riga , flowed Motion through it .

Within a few days , emergency supply centers were established Creating and aid Assistance from various agencies under the United Nations and several countries flowed Motion into the country .