Table Of ContentPSYOP IN PANAMA  
OPERATION JUST CAUSE 
For many Americans, the first time they heard the word PSYOP was in conjunction 
with the final stages of Operation Just Cause. They watched on television as a group of 
PSYOP soldiers played deafening rock music, 24 hours a day, over loudspeakers that 
ringed the Vatican Embassy compound where General Noriega had taken refuge. The 
siege continued until General Manuel Noriega couldn't take it anymore and 
surrendered. It is unfortunate that this is what most Americans remember of PSYOP 
in Panama because in actuality, the role played by PSYOP in Operation Just Cause 
far outweighed the music playing outside the Vatican Embassy which was highlighted 
by the press.  
PSYOP contingency planning and preparation for hostilities in Panama began years 
before Operation Just Cause. PSYOP materials to include prerecorded TV, radio and 
loudspeaker tapes were developed, radio and loudspeaker scripts were prepared, and 
possible themes and designs were identified for printed materials. The Commander 
for the 1st Psychological Operations Battalion, the battalion with area responsibility 
for Panama, was designated Commander of the PSYOP Task Force in the event 
hostilities should arise. They didn't have to wait long.  
During the spring of 1988 Noriega increased his anti-
American propaganda and directed his troops to harass US 
Forces. The US responded by adding additional security 
elements which included, military police, another infantry 
brigade and three PSYOP loudspeaker teams.  
As the duration of the hostilities was unknown, the 4th 
PSYOP Group took advantage of the situation by rotating 
loudspeaker teams in order to give them real world on site 
training to virtually all team members. As tensions ignited, 
the loudspeaker teams found themselves supporting the US 
security forces against staged protests by members of the 
Panama Defense Force (PDF) and Dignity Battalions 
(DIGBAT). In each case the loudspeaker teams proved their 
worth utilizing pre-recorded tapes and scripts that later 
would be invaluable during Operation Just Cause.  
In May of 1989, Noriega nullified the presidential elections 
after Guillermo Endara was elected President. This action further contributed to 
worsening internal conditions as well as international relations. This heightened unrest 
in the country signaled that a combat scenario might be required after all.  
On October 3rd members of the Panama Defense Force (PDF) attempted an 
unsuccessful military coup. In response to this attempt, Noriega purged the PDF 
military leadership leaving only those that he felt he could trust. This action proved to 
be unpopular with many PDF soldiers and would later be useful in the employment of 
PSYOP.  
As discontent within Panama increased along with anti-American propaganda, 
concerns for the safety of US personnel and property increased. The handwriting was 
on the wall, the escalation of the threat against United States interest as well as the 
overall well being of the Panamanian population left little choice but to plan and 
prepare for a full scale combat operation.  
The 1st PSYOP Battalion Commander was designated by General Stiner, 
Commander, Joint Task Force South, as a member of the 20-man Joint task Force-
South staff element identified to pre-deploy to Panama in advance of the assault forces 
if the combat contingency should become a reality.  
On 18 December 1989, two days after the shooting of a US servicemember and the 
harassment of another and his wife by the PDF, the 20-man advance JTF-South team 
received the go ahead to deploy to Panama.  
The forward PSYOP Task Force in country now consisted of the 1st PSYOP Battalion 
Commander, a forward liaison cell, the loudspeaker detachment already in country, a 
pre-positioned 4th PSYOP Group 10,000 watt AM radio broadcast team, Volant Solo 
PSYOP TV/radio broadcast aircraft from the 193 Special Operations Group (SOG) of 
the Pennsylvania Air National Guard, and the USSOUTHCOM J-3 PSYOP office.  
On 20 December 1989, Operation Just Cause was executed. The loudspeaker 
detachment in country fielded 5 loudspeaker teams, which linked up with their 
designated supported units. Other loudspeaker teams would deploy with their 
supported combat units (82nd Airborne Division, 1/75th Rangers, US Marines, Navy 
Seals, etc).  
The Opposing Forces 
The Panamanian Defense Force numbered nearly 12,800 troops, national guard, 
police, and officials- but only about 4,000 could be classified as combat troops. The 
ground forces of the Panama Defense Force were organized into 2 infantry battalions, 
5 light infantry companies, I cavalry troop, and 2 public order companies; their 
equipment included 28 armored cars. The PDF air force comprised five hundred 
troops with an assortment of reconnaissance, transport and training planes as well as 
unarmed helicopters. The PDF navy numbered four hundred sailors equipped with a 
handful of patrol craft, cutters, and launches. In addition, Noriega's forces included 
up to eighteen paramilitary Dignity Battalions.  
Before H-Hour, American forces in Panama numbered nearly thirteen thousand 
troops, including the 193d Infantry Brigade, a battalion from the 7th Infantry Division 
a mechanized battalion from the 5th Infantry Division, two companies of Marines, and 
an assortment of military police, Air Force, and Navy personnel. On and shortly after 
H-Hour, the airlift brought in a strike force of seven thousand troops: a composite 
brigade of the 82d Airborne Division, the 75th Infantry Regiment (Ranger), and the 
equivalent of five or six battalions of other special operations forces that included 
Army Special Forces, Navy Sea-Air-Land forces (SEALs), Navy special boat units, Air 
Force special operations personnel and psychological operations specialist.  
Later on D-Day, and during the next few days, an additional seven thousand troops-
mostly from the 7th Infantry Division (L) and the 16th Military Police Brigade and 
various civil affairs and psychological operations units-arrived to relieve the assault 
forces, engage in stability operations, and help establish the new government. The last 
increment brought to twenty-seven thousand the total of U.S. forces in Panama for 
JUST CAUSE; nearly twenty-two thousand actually engaged in combat operations as 
members of the conventional task forces, ATLANTIC, PACIFIC, BAYONET, 
SEMPER Fl, or of the unconventional warfare task forces, GREEN, BLACK, BLUE, 
WHITE, and RED.  
Effectiveness of Loudspeaker Teams 
At H-Hour, 1-508th Airborne had the mission of 
securing Ft. Amador, an installation shared by 
the U.S. and PDF. Because of the need for 
OPSEC, American dependents could not be 
evacuated in advance of the attack. This 
complication, and the desire to minimize enemy 
casualties and physical damage, made PSYOP 
loudspeaker teams a key asset. The battalion 
sealed off the PDF portion of Ft. Amador and 
ensured that all noncombatants were safe. After 
daylight, the task force set about systematically securing the area. When initial 
appeals failed to persuade the PDF to surrender, the commander modified the 
broadcasts. The holdouts were warned that resistance was hopeless in the face of 
overwhelming firepower and a series of demonstrations took place, escalating from 
small arms to 105mm howitzer rounds. Subsequent broadcasts convinced the PDF to 
give up. The entire process allowed Ft. Amador to be secured with few casualties and 
minimal damage.  
The US Marines ran into heavy resistance from PDF and DIGBAT forces at La 
Chorrera, a small village on the outskirts of Panama City and Howard Air Force Base. 
That evening as the Marines ceased fire for the night, the loudspeaker team 
broadcasted surrender appeals as safe passage leaflets were dropped. Resistance 
ceased early the next morning without an additional shot being fired. Members of the 
PDF and DIGBAT surrendered peacefully all the time waving the safe conduct passes 
that were dropped during the night.  
In addition to loudspeaker support, PSYOP activities included leaflet drops of safe 
conduct passes , AM radio and television broadcasts, and wanted posters as well as 
posters urging members of the PDF and DIGBAT to turn in their weapons for money.  
Just as it was important for President 
Bush to explain to the American people 
the reason for US intervention in 
Panama, informing the local population 
of the US military intent in Panama was 
crucial in order to obtain their support. 
Three initiatives that helped keep the 
general population informed were the 
publication of a Spanish language 
newspaper and radio and television 
broadcasts by Volant Solo aircraft.  
The radio and television broadcasts, all in Spanish, notified the Panamanian 
population not only informed the population of US intent but also provided advice on 
how to avoid becoming a casualty. This effort was cited as being a major factor in the 
reduction of civilian casualties. For the television broadcast, Channel 2 was chosen, as 
it was the national channel operated by the Panamanian military.  
By January 8, 1990, The PSYOP 
Task Force had produced and 
disseminated over one million 
leaflets and handbills, 50,000 
posters, 550,000 newspapers, and 
125,000 units of other 
miscellaneous printed materials. In 
addition to the Volant Solo 
television broadcasts, the PSYOP 
radio stations operated 24 hours a 
day in an effort to get the word out 
to the people of Panama.  
PSYOP had once again proved 
itself to be a force multiplier 
through the integral role it played 
during Operation Just Cause. The 
loudspeaker teams deployed with 
conventional units proved effective 
in reducing resistance and 
controlling the local populace. 
Integration of major themes below 
joint task force (JTF) level was 
slow at first, but picked up 
momentum as programs like 
"money for weapons" began 
impacting directly on tactical units.  
LESSONS LEARNED 
Early integration of PSYOP planning helped ensure overall success of the operation.  
Use tactical PSYOP loudspeaker teams to encourage the enemy to surrender before 
assaulting their position and to control flow of refugees by broadcasting the directions 
to the collection points.  
Use broadcasts to get the general population to comply with instructions and 
advisories to not only keep them informed but also to keep them out of harms way.  
Commanders should personally prepare messages used by PSYOP loudspeaker teams 
to encourage enemy to surrender. Aspects of local culture must be considered.  
Plan to use pre-printed leaflets to augment efforts of loudspeaker teams in controlling 
flow of refugees.  
Provisional Reorganization  
of the 4th PSYOP Group (Abn) 
Lastly but perhaps most important was the fact that out of the experienced gained 
from the formation of a PSYOP Task Force for Operation Just Cause, the 4th 
Psychological Operations Group (Airborne) recognized a need to provisionally 
reorganize. Regionally oriented battalions would remain the same, but the Group 
would now be better able to support a wide variety of contingencies.  
Under the new tenets of the reorganization established in June of 1991:  
The 4th Psychological Operations Group's (Airborne) Commander would deploy to 
the theater headquarters, along with a small headquarters element , to provide 
PSYOP advice and assistance to the supported theater Commander-In-Chief (CINC) 
and act as an expeditor for PSYOP-related actions.  
The PSYOP Task Force would continue to be commanded by the theater PSYOP 
Battalion Commander, with two other battalion commanders working for him.  
1. A tactical commander (the former 9th PSYOP Battalion Commander) would 
control all loudspeaker teams and other tactical PSYOP assets and ensure 
support to other tactical elements of the Joint Task Force (JTF). Furthermore 
the 9th PSYOP Battalion would train for these support elements worldwide.  
2. A media production commander (The commander of the new provisional 
PSYOP Dissemination battalion) would produce all printed material, 
recordings, and audiovisual products, as well as be responsible for conducting all 
radio and television broadcast operations.  
The effectiveness of the new provisional reorganization was to be tested only 2 months 
later with the start of Operation Desert Shield and later Desert Storm. Judging by the 
success of both PSYOP operations the decision to reorganize proved to be a good one.