The story of 3 soldiers

This is the story of 3 universal soldiers who wanted to protect their motherland. One said he will protect the country staying within the country and moving from one town to another and checking randomly what is happening in each town. The second soldier said he will stay on the boundary and protect the country. The third soldier said he will stay out of his country and protect it from intruders who try to enter by convincing them not to enter indicating the problems. Each of them felt their idea is correct. A day came when the outside country wanted to invade this country, there was a rebellion inside the country and then the soldier inside the country felt he needed the other two to help him, and the soldier outside felt he needed the other two. But, the soldier at the border not knowing what was happening inside and what was getting planned outside felt he should have either stayed inside the country or he should have gone out of the country instead of staying at the border. Now, the three people incidently happened to meet at the border to share their problem. Now, the person at boundary realized that there is major problem both outside and inside and he said to other two we should all work together and solve the problem. Now, they were not sure whether they should solve the outside problem first or insider problem first then they decided the insider problem should be first solved to solve the outsider problem. Because, if an outsider comes, we have more strength if there are no internal problems. So, moral of the story, solve inside problems first and outside problems would never transpire.