This is true. But Luke led the main assault on Thrawn. After this, he went to the senate, which at that time leia was a major member and highly influential, and requested that they allow him to gather all force sensitives he had encountered throughout his many journeys and repopulate the Jedi Order. They, although reluctantly, approved and this begun the new Jedi Order series. A while after that came the Yuzaan Vong threat, which during this, Luke finally persuaded Leia to begin force training. Leia and Han had three children, the twins Jacen and Jaina and their youngest Anakin Solo. Luke got married to Mara Jade who, when they first met, was trying to kill him. They had a son which he named Ben after Obi-Wan. Shortly after that, Anakin Solo was killed in a mission against the Yuzaan Vong and the Solo Twins both went a little bezerk at seeing their little brother killed. Jaina pretty much laid down her saber and became a destinguished fighter pilot and Jacen thought he had discovered where his Grandfather, Vader, went wrong and thought he could use the darkside without being corrupted and seduced by it. He was wrong of course. Last I read, he was training young Ben and Luke and Mara Jade discovered Jacen's motives and forbid Jacen training their son. Oh and Jacen, from his star destryer, fired on his parents in the Falcon and Jaina began hating her twin brother. A war broke out between them and Corellia and, Han being Corellian and all, Han sided with Corellia and Jacen sided with the other side. In a matter of a few years, the whole Skywalker/Solo family were on different sides and at war with each other.