I am somewhat surprised about this:
LETTERS OF INVITATION:
After you complete the registration process, you will be given the
option of requesting a Letter of Invitation for IETF 71 in Philadelphia
and for IETF 73 in Minneapolis. You can request the Letter of Invitation
as soon as you finish registration, or at a later time by following the
link provided in the confirmation email.
Why does anyone need to REGISTER first before getting an invitation letter
which may help with getting a VISA ???
Bert Wijnen
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