Then what are they doing go into war? If they don't have the resources to protect their own people, the US would possibly help the country out, involve charities, however if the country knows it's limited resources yet still decides to go to war, do they deserve help?

Well in this so called "Global Society" people are going against their own all the time for personal gain, which is leading to war. Helping our own is always going to be important than others, as the results will normally directly affect us.

They can form allies through other means... and no we aren't all the same, we are separated by cultures and beliefs. Were we all the same, why would the war even exist? According to your theory of "living on the same, floating, giant rock.", we should simply help one another.

What if the country isn't their ally? The article hasn't specified which country the war is in... Other countries have a strong military, why is the US having to look after other countries for their mistakes?

Countries got themselves in these problems, if they're not able to handle the consequences for their actions, should we not instead be questioning the country's government and their ability to protect their people?

America is in debt, we all know that, and entering a war would be expensive, most likely sending us into more debt. With our money, shouldn't we be doing something more useful for our own people? The unemployment rates are higher than ever, let's help the US citizens before helping other countries.