because it was awsome
Countries under Nazi influence were involved in the Holocaust. Some to greater degrees than others.
There wasn't really an exact amount.
Russia, America, Canada, Sweeden, Austrailia, Africa
Please see the related questions.
because they were looking after their own people
It is in basically all of the countries who were involved in the Holocaust (and Israel).
Yad VashemThe Holocaust Martyrs' and Heroes' Remembrance AuthorityP.O.B. 3477Jerusalem 91034 Israelthough if you want to find one closer to you, there are museums in all countries that were in the Holocaust and many in the US and other countries not involved.
Yes, there were Mexicans involved in the Holocaust, as well as numerous other nationalities. Also, some Holocaust survivers left Europe, and immigrated to Mexico and other Latin American countries.
almost all of the countries in Europe. Unless you want your definition to include 'bystanders', then you can include the rest of the modern world
The Holocaust is "complete" only in the sense that it is ended, stopped. The Nazis are no longer committing mass murder.