Nazi-Soviet pact Aug 1939 made battle unwinnable, couldn't land troops or defeat either larger army, Britain knew French prepared for defensive war(Maginot line)

BEF sent to defend France, much more valuable ally Royal Navy evacuated battleships recently sold to Poland, evacuated parts of Polish army, evacuated pilots who fought in battle of Britain Britain ran intelligence op (operation Peking) to retrieve vital armaments and skilled workers entente cordiale did nothing, no access by land or sea and air risky Blitzkrieg very effective between 1939-1941 Blitzkrieg makes it very difficult to respond less mobile foot soldiers (Wehrmacht) large bombers also drop arsenal on major cities supported by overwhelming air power (Luftwaffe) rapidly disrupts enemy supply lines, railway lines, radio HQ Then encircled and rapidly destroyed Polish forces large numbers of panzers(tanks) move rapid in columns to punch holes in enemy lines. Polish resistance movement one of largest in all of ww2 Germany and Soviet Union divided Poland when war ended, Soviet communist east, Fascists German west war declared on Germany 2 days after invasion 3rd sept-1st sept sept 1939 Germany and Russia invaded Poland

Battle blitz beach head 2000