when did japan invade it?
31 March 1942
Christmas Island
At dawn on 31 March 1942, a dozen Japanese bombers launched the attack, destroying the radio station. The same day, a Japanese fleet of nine vessels arrived, and the island was surrounded. 
when was caroline island sighted for the first time? 1606 who did that? Europeans what is the island's location? It is the easternmost of the uninhabited coral atolls which comprise the southern Line Islands in the central Pacific Ocean of Kiribati. is the mentioned place a country? Yes, an independent country. when did it get its independence? 1979 describe an instance where it shows its foreign relation? It agreed to allow Japan's National Space Development Agency to lease land on Christmas Island for 20 years, on which to build a spaceport. name a few newspapers from the christmas island? They have newsletters called as "The Islander". does it have centers for quarantine? Yes, it opened parts of the Immigration Reception and Processing Centre as a quarantine facility. does it also have detention centers too? Yes, an immigration detention centre.
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Christmas Island [SEP] Japanese invasion
About 850 men of the Japanese 21st and 24th Special Base Forces and 102nd Construction Unit came ashore at Flying Fish Cove and occupied the island. They rounded up the workforce, most of whom had fled to the jungle. Sabotaged equipment was repaired and preparations were made to resume the mining and export of phosphate. Only twenty men from the 21st Special Base Force were left as a garrison.