Why did the Nazis implement the Final Solution?

The Final Solution was the planned extermination of all the Jews in Europe by the Nazis, through systematic gassing. The implementation of the Final Solution after the Wannsee Conference in January 1942 can be explained by fundamentally, the core beliefs of Nazis and Anti-Semitism. Thus the Final Solution was also implemented because of Nazi obsession with solving the 'Jewish problem' which had failed in previous methods. The war, and in particular the German invasion of Russia …

…Jew-free Europe. While other methods such as segregation, deportation, ghettoisation were tried, the Nazis realised that mass murder of the Jews was more efficient. The war had also radicalised things and created the setting for genocide. However, poisoning, shooting and mobile gas vans were found to not be as advantageous as systematic gassing in chambers. In conclusion, for these reasons, the Final Solution was implemented by the Nazis as a solution to the Jewish problem.