The form of a poem can be understood simply as the physical structure. However, there are various aspects that compose it and that contribute to the poet's purposes. I find that the sonnets “When I Have Fears that I May Cease to Be,” by John Keats, and “Anthem for Doomed Youth,” by Wilfred Owen, make effective use of their formal elements to show the depth of the situation of their poems . Keats uses the structure of the Shakespearean sonnet to organize his thoughts displayed throughout the poem and to build them around the speaker's fear which is the central focus of the sonnet. Owen's sonnet is a Petrarchan sonnet, although it has a similar rhyme scheme to the Shakespearean one, which allows him to show a contrast between the images of the similar rhyme schemes of the two sonnets allow a clear organization of the speaker's ideas and support these ideas through comparison and connection. Both poems utilize or essentially use a Shakespearean rhyme scheme to provide rhythm to their sonnets, adding further emphasis to the topics presented in them. Owen uses the rhyme scheme in a way to emphasize his description of the raging battlefield scene and to further the dehumanization of the soldiers in war. The simile used to compare the soldiers to "cattle" is connected to the fast "rattle" of the rifles, favoring the image of the inhumane way in which we killed the soldiers (1,3). Owen alters the Shakespearean rhyme scheme in the eleventh line by making a move to create two lines in a row that rhyme, rather than alternating. This allows for a smooth transition in his description of the ritual marking a soldier's death. To draw attention to the tears “in their eyes,” which could be those of the dead soldier or brothers at war, they are linked to the “glimmer of farewells,” representing quick mourning for the soldiers (10-11). The connection here is strengthened with the use of enjambement at the end of the tenth line; without grammatical separation, the thought passes easily from one line to another. On the other hand, Keats uses the exact Shakespearean rhyme. In the sonnets “When I Have Fears that I May Cease to Be,” by John Keats, and “Anthem for Doomed Youth,” by Wilfred Owen, the poets' use of formal elements creates distinctions to highlight the speakers' thoughts and based on the situation. Although the two sonnets differ in their overall structure, the formal elements that make up that structure are equally crucial to both in organizing and contrasting the themes and ideas present throughout the poem.