The believer fears only Allah. Does that mean he does not fear the oppression of tyrants or enemies in the case of war,…

The believer fears only Allah. Does that mean he does not fear the oppression of tyrants or enemies in the case of war, for example, or predatory animals?

No, this is all natural, instinctive fear that does not contradict faith. Your fear only conflicts with faith in two cases:

1. If you believe that what you fear harms you or benefits you by its own will without Allah.

2. If your fear leads to abandoning a duty or committing a prohibition, such as obeying the one you fear in disobedience to Allah, for example, even though you did not reach the limit of compulsion.

Otherwise, natural fear occurred even from the Prophets, peace be upon them, as with Moses, peace and blessings be upon him: (So he left it, fearful and anticipating), (He said, "My Lord, indeed I killed from among them a soul, so I fear they will kill me").