BCP - Import Date into field type of Date fails

I am using 2008 R2.

I have text files with dates shown as 01/01/2014. 

When I use BCP to import the text into a datetime field it works.  When I try to import it into a date field, it fails with 'invalid character value for cast specification'.

Why is the import failing when the SQL field type is Date, and it is imported when the type is Datetime?

Thanks

Tom

MisterT99