It was for this reason that Churchill was relieved when Roosevelt was re-elected in 1940. Upon re-election, Roosevelt set about implementing a new method of providing necessities to Great Britain without the need for monetary payment. He persuaded Congress that repayment for this immensely costly service would take the form of defending the US. The policy was known as Lend-Lease and it was formally enacted on 11 March 1941.
Ships of the Royal Navy and Royal Australian Navy, intercepted and sank or severely damaged several ships of the Italian Regia Marina under Squadron-Vice-Admiral Angelo Iachino. The Battle of Cape Matapan fought from 27 to 29 March 1941.
Philip was mentioned in dispatches for his service during the Battle of Cape Matapan. in which he controlled the battleship's searchlights. He was also awarded the Greek War Cross.
The Yugoslav government was overthrown two days later (Tripartite Pact Signature) by nationalists. The Yugoslav coup d'état of 27 March 1941 in Belgrade, Kingdom of Yugoslavia, replaced the regency led by Prince Paul and installed King Peter II.