In the following set of words, which is different than the others?

Question

Quizplus · Accepted Answer

To submit means 'to give in'. If you submit to someone, you give yourself up and do what they want you to do. This is different than the other words in this set which all refer to attacking.
To assail someone is to attack or assault them.
To besiege is 'to surround a place with armed forces in order to capture it or force its surrender.
Conquer is defined as 'to overcome and take control of a place or people by military force'.
Subjugate is defined as 'to bring under domination or control, especially by conquest'.

In the Following Set of Words, Which Is Different Than