We must make certain where the enemy fleet is.

3 seconds sound clip from the Midway (1976) movie soundboard.

You can hear this line at 00:23:22.994 in the Blu-ray version of the movie.

Quote context

[...]

- Halsey is courageous, tough-minded and not afraid to take risks, but these strengths, we will turn against him.

- It will take Halsey's task force at least 48 hours to reach Midway. By that time, Admiral Nagumo, you'll have crushed Midway and be waiting for him.

- You'll have the advantage of position, and at least a two-to-one superiority in carriers, and four to five times the number of screening vessels.

- All of this is based on the assumption that the American fleet will still be guarding the Hawaiian Islands when we make our strike.

- Nimitz is crippled and on the defensive. He must deploy his remaining strength around his most valuable Pacific base.

- I agree with Admiral Nagumo, sir.

- We must make certain where the enemy fleet is.

- May I propose that on the 29th, we send two flying boats from Kwajalein to French Frigate Shoals. We fuel them by tanker submarine and fly them to Pearl Harbor on the 30th.

- Let them report whether or not the American fleet is actually there.

- A very wise precaution indeed. We will call it Operation K.

- Does anyone have any other thoughts?

- Yes.

[...]