Due to the globally increased threat of terrorism, the security and entry policies of many countries – especially of the United States – are subjected to a steady change. Tightened luggage and visa regulations, electronical application procedures or current health care measures have to be considered even more before planning a journey.
Here you can find information about current security and entry policies which could be relevant for your journey:
Federal Foreign Office - Germany
Entry hints for the USA:
U.S. Embassy & Consulates in Germany
U.S. Customs and Border Protection
Entry hints for Australia:
Australian Government - Department of Immigration and Border Protection
Entry hints for Canada:
Canada Border Services Agency - Travel Documents
Government of Canada - Find out if you need an eTA or a visitor visa
Government of Canada - Apply for an eTA
Government of Canada - Get help with an eTA
Visa information: