Just to start with the very last bit of the last question, there were Japanese internment camps on Hawaii.

If you read a bit on the Hawaiian internment, you might get a better sense of the context informing the rest of your question.

An excerpt from that page:

Given its strategic location in the middle of Pacific Ocean, the Hawaiian Islands had long been seen as a key American military outpost. Not long after larger numbers of Japanese laborers began to migrate to Hawai‘i beginning in 1885, Japan began to emerge as a military threat to the United States. By the early years of the 20th century, many believed that Japan and the United States were on a collision course to war. At the same time, the Japanese population in Hawai‘i continued to grow; by 1920, Japanese immigrants and their descendants made up over 40% of the population of Hawai‘i. This combination of circumstances alarmed many: what would this large Japanese population in Hawai‘i do in the event of war between the United States and Japan?

Beginning the late 1920s and continuing through the 1930s, various U.S. governmental bodies conducted studies and made plans to address this question. As a result of this planning, detailed lists were produced that allowed local authorities to swiftly arrest several hundred local Japanese within 48 hours of the attack, after the declaration of martial law.

So there'd been a Japanese population living and working there for a few decades. They weren't the only folks from elsewhere who were on the islands.

One of the lesser-known things about Hawaii was that in the early-to-mid 1800s, it was... well, not exactly colonized, but heavily under the influence of Russia, part of the same fur- and whale-trade that saw Russian colonies founded in Alaska. (I believe the Russians were getting fur from sea otters and seals in Hawaii.)

There was actually some talk of Tsar Aleksander I "extending his protection" over the Hawaiian Islands, but he never did.

Russia's fortunes in the New World, to a degree, turned on a misstep in Hawaii, when a German doctor employed by the Russian-American Company tried to instigate a Russian conquest. He built a few forts on Kaua'i... and that was about it.

Schaeffer signed an agreement with a king or high chief named Kaumualiʻi, who was a leader of Kuai'i but a rival of King Kamehameha, who was uniting all the islands, and who refused to sign anything giving Russians authority in Hawaii. Kaumuali'i had already more or less surrendered to Kamehameha, and might have hoped the Russians could help him get his island back. They couldn't, or didn't really want to.

In part, the Russians were losing interest in Hawaii - and in America in general - because of unsustainable hunting practices. Otters, whales and seals all went from really plentiful to quite hard to find at all over the course of the 19th century.

Here is some information about what happened to the native Hawaiians, often called kanakas.

The actual redistribution of land occurred during the "great mahele". Traditional land divisions were held communally by the people and chiefs. During the great mahele 1/3 of the land went to the crown (Hawaiian Crown lands, much of which are now state lands). 1/3 of the land went to the chiefs (example: Kamehameha School lands http://en.m.wikipedia.org/wiki/Kamehameha_Schools). 1/3 of the land went to the people that were living on the lands, though in the end they actually recieved a very small amount (1%).

Often these deeds had a dozen people or more as owners and could be sold by 1 or 2 individuals on the deed, without the knowledge of the rest of the people. For example, 2 people from a large family group could move away to the big city Honolulu for work. They could sell their land after posting a notice in the newspaper, which may never actually get to the people still living and working on the land. This along with complicated leasing agreements led to lost lands.

This land dividing resulted in a large number of kanakas losing their ancestral lands through unscrupulous dealings. Foreign advisors and business people believed the kanakas were too "lazy" to be allowed to self-determine their land usage, and helped to consolidate much of the common and chiefs' lands, which were then leased and sold to foreigners and/or the Missionaries children. Today the descendents of these exact same families still own majorities of much of this land. http://en.m.wikipedia.org/wiki/Great_Māhele

Hawaiians have something called "Hawaiian homelands" instead of reservations. Many of these lands were less than desireable. Think off-grid lava rock dominated lands on the drysides of the mountains. http://en.m.wikipedia.org/wiki/Hawaiian_home_land

I am new to posting to r/askhistory. Please let me know if I need more/better references. This is a topic that I am very interested in.