Complex sentence: Malashenko adamantly believes that the Soviet invasion of America is being welcomed as liberation, however the Soviet presence in the United States is, unsurprisingly met with hostility by the civilian population, who form militia groups to assist the National Guard.
Split into simpler sentences: Malashenko adamantly believes that the Soviet invasion of America is being welcomed as liberation. However, the Soviet presence in the United States is, unsurprisingly met with hostility by the civilian population, who form militia groups to assist the National Guard.