TL;DR
World War Two came to Singapore when the first bombs were dropped on the island on 8 December 1941.1 61 people were killed and 133 others injured that day.2 This was followed by a swift Japanese invasion from the north two months later.3 Local forces and the British military were completely overwhelmed by the Japanese army and surrendered after just one week.4 Singapore was renamed Syonan-To, or Light of the South, during an occupation which lasted for three years and seven months.5
Notes
1 https://www.nlb.gov.sg/main/article-detail?cmsuuid=2f893232-e511-49f8-a017-0fd3eb8591b0
2 https://www.nlb.gov.sg/main/article-detail?cmsuuid=2f893232-e511-49f8-a017-0fd3eb8591b0
3 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
4 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
5 http://www.nlb.gov.sg/biblioasia/tag/syonan/
6 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
7 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
8https://www.nhb.gov.sg/~/media/nhb/files/places/trails/world%20war%20ii/wwii-text.pdf
9https://books.google.com.sg/books?id=jGLE74Jdr0IC&pg=PT64&lpg=PT64&dq=“When+you+encounter+the+enemy+after+landing,+think+of+yourself+as+an+avenger+coming+face+to+face+at+last+with+his+father’s+murderer.+Here+is+a+man+whose+death+will+lighten+your+heart.”+–+Excerpt+from+a+manual+issued+to+Japanese+troops+in+Southeast+Asia&source=bl&ots=HMMPnOGnxD&sig=ACfU3U2pq8Fcnto56-j1nvtb0q_wbO7yuA&hl=en&sa=X&ved=2ahUKEwjq2ZK-rszsAhWs6nMBHWjjAD4Q6AEwBXoECAcQAg#v=onepage&q=“When%20you%20encounter%20the%20enemy%20after%20landing%2C%20think%20of%20yourself%20as%20an%20avenger%20coming%20face%20to%20face%20at%20last%20with%20his%20father’s%20murderer.%20Here%20is%20a%20man%20whose%20death%20will%20lighten%20your%20heart.”%20–%20Excerpt%20from%20a%20manual%20issued%20to%20Japanese%20troops%20in%20Southeast%20Asia&f=false
10 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
11 https://www.nlb.gov.sg/main/article-detail?cmsuuid=be7ce13d-adb5-4877-af4d-5ba2671bc913
12 https://www.facebook.com/NationalHeritageBoardSG/posts/biar-putih-tulang-jangan-putih-mata-death-before-dishonour-was-the-malay-motto-t/2195246733831517/
13 https://news.nus.edu.sg/highlights/tracing-footsteps-brave
14 https://www.nlb.gov.sg/main/article-detail?cmsuuid=be7ce13d-adb5-4877-af4d-5ba2671bc913
15 https://www.bbc.co.uk/history/ww2peopleswar/stories/60/a8515460.shtml
16 https://www.nlb.gov.sg/main/article-detail?cmsuuid=5ffffd86-ab2e-4322-bcda-ebd4cca9b243
17https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
18 https://corporate.nas.gov.sg/former-ford-factory/whatson/exhibition-syonan/
19 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
20 https://www.nlb.gov.sg/main/article-detail?cmsuuid=cc4da337-3bcd-4f96-bdc6-5210646bdd90
21 https://www.nlb.gov.sg/main/article-detail?cmsuuid=cc4da337-3bcd-4f96-bdc6-5210646bdd90
22http://www.nlb.gov.sg/biblioasia/2019/05/21/wartime-victuals-surviving-the-japanese-occupation/
23 https://www.nlb.gov.sg/main/article-detail?cmsuuid=b0914458-4d3c-4080-b9fe-aa9cb3fbfdd1
24 https://www.japantimes.co.jp/opinion/2016/08/06/commentary/japan-surrender-world-war-ii/
25 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
26 https://eresources.nlb.gov.sg/history/events/90e0c9be-ec65-4bd1-9b71-28d6062acc38
27Ceremonial For Installation Of Governor-General, [ARTICLE]Page 2, Morning Tribune18 May 1946
28 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
29 https://eresources.nlb.gov.sg/history/events/90e0c9be-ec65-4bd1-9b71-28d6062acc38
7 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
8https://www.nhb.gov.sg/~/media/nhb/files/places/trails/world%20war%20ii/wwii-text.pdf
9https://books.google.com.sg/books?id=jGLE74Jdr0IC&pg=PT64&lpg=PT64&dq=“When+you+encounter+the+enemy+after+landing,+think+of+yourself+as+an+avenger+coming+face+to+face+at+last+with+his+father’s+murderer.+Here+is+a+man+whose+death+will+lighten+your+heart.”+–+Excerpt+from+a+manual+issued+to+Japanese+troops+in+Southeast+Asia&source=bl&ots=HMMPnOGnxD&sig=ACfU3U2pq8Fcnto56-j1nvtb0q_wbO7yuA&hl=en&sa=X&ved=2ahUKEwjq2ZK-rszsAhWs6nMBHWjjAD4Q6AEwBXoECAcQAg#v=onepage&q=“When%20you%20encounter%20the%20enemy%20after%20landing%2C%20think%20of%20yourself%20as%20an%20avenger%20coming%20face%20to%20face%20at%20last%20with%20his%20father’s%20murderer.%20Here%20is%20a%20man%20whose%20death%20will%20lighten%20your%20heart.”%20–%20Excerpt%20from%20a%20manual%20issued%20to%20Japanese%20troops%20in%20Southeast%20Asia&f=false
10 https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
11 https://www.nlb.gov.sg/main/article-detail?cmsuuid=be7ce13d-adb5-4877-af4d-5ba2671bc913
12 https://www.facebook.com/NationalHeritageBoardSG/posts/biar-putih-tulang-jangan-putih-mata-death-before-dishonour-was-the-malay-motto-t/2195246733831517/
13 https://news.nus.edu.sg/highlights/tracing-footsteps-brave
14 https://www.nlb.gov.sg/main/article-detail?cmsuuid=be7ce13d-adb5-4877-af4d-5ba2671bc913
15 https://www.bbc.co.uk/history/ww2peopleswar/stories/60/a8515460.shtml
16 https://www.nlb.gov.sg/main/article-detail?cmsuuid=5ffffd86-ab2e-4322-bcda-ebd4cca9b243
17https://www.nlb.gov.sg/main/article-detail?cmsuuid=1afe9a7e-f0bd-4b11-9fe3-bb3aab31c3e8
18 https://corporate.nas.gov.sg/former-ford-factory/whatson/exhibition-syonan/
19 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
20 https://www.nlb.gov.sg/main/article-detail?cmsuuid=cc4da337-3bcd-4f96-bdc6-5210646bdd90
21 https://www.nlb.gov.sg/main/article-detail?cmsuuid=cc4da337-3bcd-4f96-bdc6-5210646bdd90
22http://www.nlb.gov.sg/biblioasia/2019/05/21/wartime-victuals-surviving-the-japanese-occupation/
23 https://www.nlb.gov.sg/main/article-detail?cmsuuid=b0914458-4d3c-4080-b9fe-aa9cb3fbfdd1
24 https://www.japantimes.co.jp/opinion/2016/08/06/commentary/japan-surrender-world-war-ii/
25 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
26 https://eresources.nlb.gov.sg/history/events/90e0c9be-ec65-4bd1-9b71-28d6062acc38
27Ceremonial For Installation Of Governor-General, [ARTICLE]Page 2, Morning Tribune18 May 1946
28 https://www.nlb.gov.sg/main/article-detail?cmsuuid=af83a442-bba9-40ff-bb8b-2595db9fdc1f
29 https://eresources.nlb.gov.sg/history/events/90e0c9be-ec65-4bd1-9b71-28d6062acc38

