Complex sentence: After the independence, the statues to Portuguese heroes in the capital city were removed and most were stored at the fortress, and black soldiers carrying Russian rifles replaced Portuguese Army soldiers (both black and white) with western arms in city barracks and on the streets.
Split into simpler sentences: After the independence, the statues to Portuguese heroes in the capital city were removed and most were stored at the fortress. Black soldiers carrying Russian rifles replaced Portuguese Army soldiers (both black and white) with western arms in city barracks and on the streets.