I would agree that America is under-praised for its contribution to the modern world. Speaking as a New Zealander I cannot help but be saddened and horrified at such a terrible act against this great nation. However I would disagree that nobody helps America when it is in trouble. NZ doesn't have much to offer America in terms of help but we have sent medical and search and rescue assistance to the Gulf and fire fighters to the huge fires they had a few years ago not to mention Vietnam, Korea WWI and WWII ETC.
We do what we can with what we have. Perhaps the because America is so big, you have the impression that no one helps them, or maybe no other country can provide the magnitude of assistance that America requires in time of crisis. Also, when was the last time America “asked” for assistance and was denied by a NATO ally. Just the other day they invoked article 5. This means were in this together. If you ask for help you get it, if America goes to war we’ll be there, count on it!!!!:)