Armys, military branches ... Ect
" Non-Muslims could often retain their own religions. They were required to pay a special tax, called a jizya, a source of income for the state. Many of those who did convert were not immediately accepted into the community. "
Source : khan academy
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The correct answer is that Schenck's speech was viewed as being a clear and present danger to society as Schenck wrote pamphlets spoke out against the draft.