Standing Armies

Question: In countries that support nationalism would it be appropriate to have standing armies?

I am not entirely sure on my answer to this one. I am inclined to say no; countries that support internationalism, peace, and justice would have no need for a standing army. History has shown us that countries with standing armies and manufacturers producing weapons have the tendency to look for reasons to use the army and the weapons. Doing so, however, would not be in line with the ideas of internationalism, peace, and justice. On the other hand, it seems obvious that nations need a means to defend themselves and other countries, should one other country decide to take up the offensive.

It seems like the best idea would be for nations, so long as there are nations, to have an army reserve/national guard. If countries did this, they would be in a ready defensive position, and would also be in line with the ideas of internationalism, peace, and justice. This would allow countries to send out troops to defend themselves or another country.

Sure, it's likely that some countries could abuse their reserves by claiming that it is in the name of defense, but I don't think that it would be a good idea to entirely get rid of all forms of armed fighters. It seems childish to say that one nation won't give up an army until others do, but it's also foolish to make yourself completely defenseless.