In 1914, Archduke Franz Ferdinand of Austria and his wife Sophie are shot to death by a Bosnian Serb nationalist during an official visit to the Bosnian capital of Sarajevo. The killings sparked a chain of events that led to the outbreak of World War I by early August.
Source: www.history.com
The Maldives There it’s southwest of India and Sri Lanka
If your question is literally how long they could remain without water, the answer is 1-2 days with major side effects, and 3-4 with certain death.