what is the authorโs viewpoint about the situation in this excerpt?; what does the authorโs first use of the key term illusion suggest about american foreign policy?; what is the author's viewpoint in april 1917; what does the authorโs second and third use of the key term illusion suggest about foreign policy?; what is the author's purpose?; what is the author's viewpoint the united states; what is the author's viewpoint in this excerpt