Personal opinion here: and I admit that it reduces my pressure to quote sources. The advantage and the folly of historical study is that it allows one to assess all the relevant data and accounts at leisure. There are no constraints of time, inadequate discovery, the blinders of the historical figure's presuppositions, or the uncertainty of the outcome. It may allow us to see the potential unfolding of events in ways that were unlikely to be seen by those in the middle of the events. It also puts us at risk of making judgments about historical figures and events based upon our own unrealized blinders and "more perfect" knowledge. Clearly, history shows the need for a citizenry to be vigilant and to question it's leadership. And inquiry into events such as you have described are worthy of such questioning. However; when I decided to join the navy, I did not use Watergate, or the riots in Chicago at the democratic national convention as a lens to evaluate whether my choice was morally sound. If we fail to serve because poor leaders have made bad decisions, we will never have a working republic. Just as these events see the light of day because the first amendment is a sound principle, active involvement by honest and well meaning people is our best defense against those who would act in ways that are not moral or just or legal. There must always be someone on the inside who can expose corruption or incompetence. It will never be perfect and in 100yrs they will probably argue about different events. Our country will still be successful if they are still able to argue in 100 years.
If you don't mind me asking a personal question, how did you evaluate your choice?