Final answer:
The provided information does not directly address Hovey's application of just war theory to IVF, making it impossible to state definitively what aspect of just war he considers in this context.
Step-by-step explanation:
The question asks about what aspect of just war Hovey considers in relationship to In Vitro Fertilization (IVF). Unfortunately, the information provided does not directly address Hovey's considerations of just war theory in the context of IVF.
Just war theory typically involves discussions regarding the ethical justification of war and the moral parameters surrounding its conduct, like ensuring the harm imposed by war is proportional to the good gained by defense or deterrence.
When applied to IVF, there might be an ethical conversation about the moral costs and benefits, similar to weighing the harm and good in just war theory, but without specific reference to Hovey's views, it is not possible to state definitively how he applies just war considerations to IVF.