I'm pretty sure the Marshall Islands (
currently Republic of the Marshall Islands) isn't the same as Kiribati (
currently Republic of Kiribati). In I-Kiribati, "ti" is pronounced "s", and if you say the name, I think you can hear that Kiribati is a transliteration of "Gilbert." (Kiribas).
I'd love to see some spears from the Marshall Islands, though.
Best,
F