Conversation so far:
What is Tarawa?
Tarawa is an atoll and the capital of the Republic of Kiribati, in the central Pacific Ocean.
When did the invasion of Tarawa occur?
The invasion of Tarawa commenced on 20 November 1943.
What year was the invasion of Tarawa?
The invasion of Tarawa commenced on 20 November 1943.
What was the result of the Tarawa invasion?
The heavy casualties suffered by the United States at Tarawa sparked public protest, where headline reports of the high losses could not be understood for such a small island.

Question: How long did it last?
Self-contained rewrite: How long did the Tarawa invasion last?