Don't stay around if Pol Pot captures your home town

Another learned essay on vexillology, posted at Amazon, who didn´t appreciate my efforts, purging me as a "biased reviewer" instead.

This is apparently the flag of MONATIO or the National Movement, a short lived political faction in Cambodia. When the Khmer Rouge closed in on Phnom Penh in 1975, Lon Non (not to be confused with his better known brother, ex-president Lon Nol) decided to stay put rather than take refuge in exile. Lon Non presumably believed that the Khmer Rouge would be willing to include him and his associates in a future coalition government. MONATIO was Lon Non's creation and seems to have been a kind of Khmer Rouge look-alike, which attempted to occupy key positions in the capital city before the arrival of the actual Communists. Pol Pot and his henchmen were not amused, claimed that MONATIO was a CIA plot, and within days had everyone involved executed (including Lon Non).

This is supposedly the flag of MONATIO. Red, blue and white are colors used on the Cambodian flag, but the meaning of the cross completely eludes me. A slightly different design is shown at the Flags of the World website. Apparently, the flag was known “back in the days”, but in the chaos of the Cambodian civil war nobody knew what it symbolized. It was attributed to both the Khmer Rouge, to MONATIO and to Sat Sutsakhan's Supreme Committee, the last non-Communist government in Phnom Penh before the city fell. According to Francois Ponchaud, a French Catholic missionary present in the Cambodian capital at the time, the flag was indeed that of MONATIO.

Why anyone would want to buy a version of this Über-obscure banner of a failed conspiracy is beyond me, but here it is in case you're interested…