The 1939 German akwụkwọ ikpeazụ ka Lithuania bụ a ọnụ akwụkwọ ikpeazụ nke Joachim von Ribbentrop, Foreign Minister nke Nazi Germany, n'ihu Juozas Urbšys, Foreign Minister nke Lithuania on 20 March 1939. The Germans chọrọ na Lithuania nye elu Klaipėda Region (makwaara dị ka Memel Territory) nke e detached si Germany mgbe Agha Ụwa Mbụ, ma ọ bụ Wehrmacht ga-awakpo Lithuania. The Lithuanians ama na-atụ anya na-achọ mgbe afọ nke na-ebili erughị ala n'etiti Lithuania na Germany, na-amụba pro-Nazi mgbasa ozi na mpaghara, na-aga n'ihu German mgbasa. Ọ e nyere dị nnọọ ụbọchị ise mgbe Nazi na-arụ Czechoslovakia. The 1924 Klaipėda Convention ama na-ekwe nkwa nchebe nke ọnọdụ quo na mpaghara, ma anọ signatories na-enye ọ bụla ihe enyemaka. The United Kingdom na-esochi iwu nke a akwụkwọ ikpeazụ, ma ọ bụ na-emeghe na-ezo aka Italy na Germany na-akwado Lithuania dị ka a ikpeazụ n'ókèala na-arụpụta na Europe.
Czechoslovakia