NEW : Poland welcomes the Germans , foreign ministry says . The mass execution of more than 20,000 Polish soldiers is a major diplomatic sticking point . In a written statement , Poland 's Foreign Ministry said it welcomed the resolution titled `` Katyn Tragedy and Its Victims , '' adopted by the State Duma of the Russian Federation on Saturday . A spokesman says the ` ` massacre was committed on the direct orders of Stalin '' and claim German authorities actually executed the Polish soldiers .
NEW : Poland welcomes the Germans , foreign ministry says . The mass execution of more than 20,000 Polish soldiers is a major diplomatic sticking point . A spokesman says the ` ` massacre was committed on the direct orders of Stalin '' and claim German authorities actually executed the Polish soldiers .