As eastern european nations began to reform away from the communist style of government, which nation initiated reforms first, under solidarity, during the early 1980s? .

Poland was the nation that first initiated the reforms that pulls away from the Communist style of Government usually practiced in Eastern European nations.

Solidarity is the name of a Polish labor union that became the main force of opposition to the communist rule in Poland during the 1980s.

Militarism is the answer.