Original sentence: In all three countries, Baltic partisans, known colloquially as the Forest Brothers, waged unsuccessful guerrilla warfare against the Soviet occupation for the next eight years in a bid to regain their nations' independence.The three Baltic nations re-declared their independence in 1990 and 1991, and their independence was recognized by the Soviet Union on September 6, 1991
Edited sentence: In all three countries,(especialy in Lithuania) Baltic partisans, known colloquially as the Forest Brothers, waged unsuccessful guerrilla warfare against the Soviet occupation for the next eight years in a bid to regain their nations' independence.The three Baltic nations re-declared their independenceLithunia at march 1, 1990, Latvia at May 4, 1990, Estonia at 20 August 1991, and their independence was recognized by the Soviet Union on September 6, 1991