SOS or Save Our Souls
I cant think of a specific instance when the flag was flown upside down, but it is only done when a US position has been overrun or if there is an emergency there.A national flag flying upside down is an international sign of distress.
S.o.s
Emergency care is what a person in distress needs. Some needs of a person in distress may be first aid, CPR, ACLS, and others.
Emergency distress signal
The letters SOS in Morse code mean HELP.'SOS' is the Morse code international distress signal. 'We require the material on an SOS basis...' means on 'an emergency basis...'.On the other hand, sos is a medical abbreviation that means "as needed," which would give an answer almost opposite to the original answer. Ah, the hazards of abbreviations!
it was destress rockets
Visual Emergency Distress signal
Emergency care is what a person in distress needs. Some needs of a person in distress may be first aid, CPR, ACLS, and others.
It depends on the situation. The international maritimedistress frequency is channel 16, which is 156.80 MHz. The international civilian airband distress frequency is 121.5 MHz.
S.o.s
Emergency Position Indicating Radio Beacon
An upside down flag is generally recognized as a signal of distress, and should be used only during an emergency.