Encrypt wd duo with vera crypt


I have a question about wd duo. Lets assume I dont trust WD security.
Is it possible to encrypt drives with (for example) veracrypt when using Raid 1?
If not, would it be possible to encrypt with veracrypt if using JBOD?
wdc.com says: “…or use it as two independent drives (JBOD)”, which means that two drives will show up in file explorer.
If possible, it would probably mean that I would have to run som backup software to make
backup from disk 1 to 2, right?