1. I like Admiral Yi Sunsin because he protected our country from Japanese.

2. I like Admiral Yi Sunsin because he saved our country from the Japanese invasion.

3. I like Admiral Yi Sunsin because he fought against the Japanese navy and protected our country.

4. I like Admiral Yi Sunsin because he broke many Japanese ships and won the naval battle several times.

5. I like Admiral Yi Sunsin because he protected our country from Japanese soldiers.

6. I like Admiral Yi Sunsin because he protected our country from Japanese Marines.
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I appreciate your help.
I have posted several sentences. Would you check them and correct errors? Do you have better sentences?

4 answers

Everything looks good except the word ‘broke’ in 4. Which of these verbs would work best, Doyle think?

Sank
Destroyed
Blew up
Sorry! ... do you think?
7. He destroyed many Japanese ships.
8. He blew up many Japanese ships with guns.
9. He sank many Japanese ships.
10. He had his men sank many Japanese ships by using guns/with guns.
[Are they okay?]
7, 8, and 9 are OK.

10 ~~> He had his men sink many Japanese ships ...