Why dosen't Jonathan's father want him to go when the bell rings?

Which of the following was a factor in the development of the english common law ?

What was one important characteristic of the russian military during world war i? a. it had more advanced military technology than its western european allies. b. it was an all-volunteer military that enjoyed high morale throughout the war. c. it defended russian territory but refused to attack german positions d. it was unable to provide its forces with adequate weapons and supplies.

Brainliesttt !me : ) -what is invisible warfare?