The jungles of this planet contain powerful anti-aging pharmaceutical compounds.
As of the 2330s, several powerful pharmaceutical corporations were attempting to exploit the planet's abundant jungles for medicinal compounds, to the anger of the native Wemec.
Through political maneuvering, the corporations forced Star Fleet to get involved... in what became an ongoing unofficial but violent protracted ground war that nobody but the drug companies want.
As the Federation considers it a major embarrassment, their entanglement in the war — and the war's very existence — is kept hidden from public knowledge. Few Federation citizens are even aware of the planet's existence.