 In <unk> <unk> founded <unk> <unk> , some 110 kilometres ( 68 mi ) to the southwest , as a military outpost in order to control trade along the course of the <unk> River . B <unk> Chan K 'awiil was installed on the throne of the new outpost at the age of four , in 635 , and for many years served as a loyal vassal fighting for his brother , the king of <unk> . Roughly twenty years later <unk> <unk> was attacked by <unk> and was soundly defeated . B <unk> Chan K 'awiil was captured by the king of <unk> but , instead of being sacrificed , he was re @-@ instated on his throne as a vassal of his former enemy , and attacked <unk> in <unk> , forcing <unk> <unk> Chaak , the then king of <unk> , to temporarily abandon the city . The first two rulers of <unk> <unk> continued to use the <unk> emblem glyph of <unk> , and they probably felt that they had a legitimate claim to the throne of <unk> itself . For some reason , B <unk> Chan K 'awiil was not installed as the new ruler of <unk> ; instead he stayed at <unk> <unk> . <unk> <unk> against <unk> <unk> in <unk> , driving B <unk> Chan K 'awiil into an exile that lasted five years . <unk> tried to encircle <unk> within an area dominated by its allies , such as El Peru , <unk> <unk> and <unk> . 
