Different studies of the children of American World War II, Korea, and Vietnam vets with PTSD have turned up different results: “45 percent” of kids in one small study “reported significant PTSD signs”; “83 percent reported elevated hostility scores.” 

The author uses numerical claims by giving us a study and coming up with a percentage of children that were affected by PTSD from a few wars in US history.

Other studies have found a “higher rate of psychiatric treatment”; “more dysfunctional social and emotional behavior”; “difficulties in establishing and maintaining friendships.” 

 In this section the author uses Analogy Claim. He uses PTSD and connecting it to them having the ability not to be able to maintain friendship

The symptoms were similar to what those researchers had seen before, in perhaps the most analyzed and important population in the field of secondary traumatization: the children of Holocaust survivor

There was a Factual Claim in this section when they compared Iraq war vets children to holocaust kids and both parents  had severe trama and in there case was researched extremely thorough