No infantry needed.

All we, the non-Muslims of the world, need do is to sufficiently inform ourselves about Islam so that we comprehend, and can explain to ourselves and to others (including Muslims), that we can make that connection, between

• Islam and the habit of submission that encourages despotism,
  
• Islam and inshallah-fatalism that discourages hard work and entrepreneurial flair,
  
• Islam and mistreatment of women and non-Muslims that represents a social and moral failure, [and]
  
• Islam that discourages most forms of artistic expression, and free and skeptical inquiry that the conduct of scientific investigation requires, and is thus an intellectual failure.

Let Muslim societies seek their own level. No lifelines, no lifeboats, no nothing. Watch, and let the world’s non-Muslims learn enough to recognize the connection of what happens to Islam itself, and thereby force Muslims, too, to start to arrive at the same understanding that they wish so ardently to avoid. Boots on the ground will then prove quite unnecessary.

"Societies Suffused With Islam Seek Their Own Level." By Hugh Fitzgerald, New English Review, Sept. 2008 (bullets added).