Answer:
Lublin poles: Created in 1944 when the USSR established a government for Poland. As the majority were Communists, Stalin felt he could trust them. They met first in Lublin.
London poles: Polish government members who had fled to London after the outbreak of war and set up a government in exile. Strongly anti-Soviet and anti-Communist as they were Catholic and landowners. Stalin knew they would be hostile towards them following the Nazi-Soviet Pact and the execution of 15,000 Polish officers by Soviet troops.
Step-by-step explanation: