Interior ministry spokesman Markus Amman said nobody in Liechtenstein had even noticed the soldiers, who were carrying assault rifles but no ammunition. "It's not like they stormed over here with attack helicopters or something," he said.
http://news.yahoo.com/s/ap/20070302/ap_on_fe_st/mistaken_invasion
What kind of army carries weapons but no ammunition? The Barney Fife Army!
Well, it was only 170 soldiers and they were walking. Liechtenstein is about the size of Washington, DC, so it's believable that they weren't noticed.
... who were carrying assault rifles but no ammunition ...
Of course, entering Washington, DC, without ammunition is probably suicidal. :-)
How embarrassing, you send your entire military off to rape, pillage and plunder another country and they just ignore you.........
Appenzellers. They thought it was an invasion of turtles...