What is 2008 Liechtenstein Tax Affair?

Legal Definition
The 2008 Liechtenstein tax affair is a series of tax investigations in numerous countries whose governments suspect that some of their citizens may have evaded tax obligations by using banks and trusts in Liechtenstein; the affair broke open with the biggest complex of investigations ever initiated for tax evasion in the Federal Republic of Germany. It is seen also as an attempt to put pressure on Liechtenstein, one of the remaining uncooperative tax havens, as identified by the Financial Action Task Force (FATF) on Money Laundering of the Paris-based Organization for Economic Cooperation and Development, along with Andorra and Monaco, in 2007.
-- Wikipedia