Risking a bit more, send a few people under the cover of night to the coastal airports to sneak a peek, to see if the Great Tang Empire has really gathered all its long-range strategic bombers near Mirage Country, and to also find out whether the Great Tang Empire is indeed preparing to launch a war against Mirage Country.
You see, sometimes intelligence is that simple: Most of the information about rabbits that Lighthouse Country wants can be found in the public domain on the internet, and those so-called spy intelligence officers who steal information are mostly balding middle-aged men sitting in a large office building in Langley, Virginia, guzzling coffee.
Real intelligence work actually has nothing to do with suits, ties, and silenced pistols; most of the time, it involves sending red envelopes in a group chat while at work, inciting a bunch of unemployed vagrants to spout nonsense...