Although a large part of the occupation costs were placed on the German economy, the US and the UK were increasingly forced to supply food imports to prevent mass starvation.[13] According to some historians the US government abandoned the Morgenthau Plan as policy in September 1946 with Secretary of State James F. Byrnes' speech Restatement of Policy on Germany.[14] Others have argued that credit should be given to former US President Herbert Hoover who in one of his reports from Germany in 1947 argued for a change in occupation policy, amongst other things stating: