The United States has a clear objective in Venezuela:
 regime change and the restoration of democracy and the rule of law. Yet
 sanctions, international diplomatic isolation, and internal pressure 
have failed to deliver a breakthrough. Minds are turning to military 
intervention. U.S. President Donald Trump has said that “all options are
 on the table.” What if he means it?
There are two plausible ways the United States might use force in Venezuela:
 a precision bombing campaign and a full-scale invasion. Either course 
would have to be followed by efforts to stabilize the country and 
establish a civilian government. That could take years, given the 
country's size and military strength. Venezuela has a population of 33 
million spread across a territory twice the size of Iraq. Its military 
is 160,000 strong and paramilitaries, 
colectivos (armed leftist
 groups that support Maduro), and criminal gangs collectively have more 
than 100,000 members. Even if a military intervention began well, U.S. 
forces would likely find themselves bogged down in the messy work of 
keeping the peace and rebuilding institutions for years to come.
For precision strikes to work, they would need to destroy the Maduro 
regime’s military, security, and economic infrastructure. The aim would 
be to eliminate the regime’s ability to repress the Venezuelan people 
and to convince the military to abandon the government.
Precision 
strikes are often portrayed as a quick, cheap, safe, and effective 
alternative to a broader military intervention. But two U.S. precision 
strike operations—in Libya, in 2011, and in Yugoslavia, in 
1999—underscore their unpredictable nature and their limited ability to 
shape political outcomes. In Libya, where the strikes lasted for seven 
months, the intervention achieved its narrow objective—the collapse of 
Muammar al-Qaddafi’s regime—but left the country in chaos. The 
three-month bombing campaign in Yugoslavia was more successful: It 
degraded the Yugoslav military’s ability to repress the population and 
helped lead to the establishment of a UN-monitored political framework, 
although that was a more limited goal than regime change.
A precision military intervention in Venezuela would require operations 
in the air, at sea, and in cyberspace. The U.S. Navy would need to 
station an aircraft carrier off the coast of Venezuela to enforce a 
no-fly zone and hit military targets and crucial infrastructure. The 
navy would also need to deploy a group of battleships and, perhaps, 
submarines that could launch a steady stream of Tomahawk missiles at 
military targets, such as air bases, air defense facilities, and 
communications and command and control centers. The United States would 
need to deploy other assets, too, such as attack tactical aircraft 
(which have greater precision) and drones, deployed either from an 
aircraft carrier or from a partner nation, to help destroy 
infrastructure. Finally, U.S. forces would likely use cyberweapons to 
manipulate, degrade, and destroy Venezuela’s defenses.
In the best-case scenario, the Venezuelan military would defect at the 
sight of the first Tomahawk missile, deciding to support a new 
government to avoid escalation. The Venezuelan military, however, may 
not have the professional wherewithal, after decades of degradation by 
the Chavista regime, to maintain order as an interim government assumed 
power by disarming rogue groups that would continue to support Maduro.
In the worst-case scenario, a precision strike operation would last 
for months, killing possibly thousands of civilians, destroying much of 
what remains of Venezuela’s economy, and wiping out the state security 
forces. The result would be anarchy. Militias and other armed criminal 
groups would roam the streets of major cities unchecked, wreaking havoc.
 More than eight million Venezuelans would likely flee. The chaos would 
likely lead the United States to send in ground troops in order either 
to finally dislodge the regime and its security forces or to provide 
security once the dictatorship had collapsed.
Such a scenario is 
not improbable. Indeed, the most likely outcome of a campaign of air 
strikes is that the Venezuelan armed forces would disintegrate. The 
United States, perhaps with international partners, would then have no 
option but to send troops to neutralize Venezuela’s irregular armed 
groups and restore order while a new government and security apparatus 
established themselves. How long such a peacekeeping occupation would 
last is hard to say, but the difficulty of the project and the 
complexity of the country's geography suggest that troops would stay in 
Venezuela for a lot longer than the few months for which they might 
initially be sent. The United Nations Stabilization Mission in Haiti, 
for example, lasted thirteen years in a much smaller country.
GROUND INVASION
Rather
 than launching precision strikes and getting sucked into a ground war 
later, the United States might choose to go all-in from the beginning. 
That would mean a major intervention, including both air strikes and the
 deployment of at least 150,000 ground troops to secure or destroy 
airfields, ports, oil fields, power stations, command and control 
centers, communications infrastructure, and other important government 
facilities, including the president’s residence, Miraflores Palace. The 
invading army would face 160,000 regular Venezuelan troops and more than
 100,000 paramilitaries.
The most recent large-scale U.S.-led 
military interventions, in Afghanistan in 2001 and in Iraq in 2003, both
 required U.S. troops to remain after the initial invasion for nearly 20
 years. By 2017, the two interventions had involved more than two 
million U.S. military personnel and cost more than $1.8 trillion. More 
than 7,000 U.S. service members have died in Afghanistan and Iraq. The 
costs of an intervention in Venezuela, which is free of the kind of 
sectarian divides that plague Afghanistan and Iraq, would likely not 
come near those numbers, but they would likely be significant.
The
 last Latin American country the United States invaded was Panama, in 
1989. More than 27,000 U.S. military personnel and more than 300 
aircraft quickly overwhelmed a Panamanian Defense Force of less than 
20,000. Although the invasion lasted only about 42 days, U.S. military 
operations in Panama continued for another four and a half years. An 
invasion of Venezuela would take far more troops and last far longer.
In
 the best-case scenario, the Venezuelan military would fold quickly and 
Maduro and his inner circle would flee without a fight. The 
colectivos,
 civilian militias, and other paramilitaries would stay out of the way. 
Cuban and Russian security forces would abandon their posts, and the 
Venezuelan people would welcome the foreign forces with open arms. After
 the collapse of the regime, the United States would withdraw most of 
its troops, except a limited number who would stay to support the 
Venezuelan security forces working to restore order.
        
          
  Yet things would likely not go so easily. In the worst-case 
outcome, U.S. forces would quickly defeat the Venezuelan military but 
then find themselves bogged down in guerrilla warfare with former 
members of the Venezuelan military, paramilitary groups, Colombian 
insurgents, colectivos, and some members of the civilian 
militia—all of them aided by Cuba and Russia. Under those conditions, 
the U.S. military would have to stay in Venezuela for years until a new 
government was able to maintain order.
The most likely scenario 
lies somewhere between the two extremes. After a U.S. invasion, the 
Venezuelan military would likely surrender quickly, the regime would 
collapse, and most Cuban and Russian personnel would withdraw. But the 
U.S. presence would push military defectors, paramilitary groups, and 
militias into hiding. The United States would have to lead the 
rebuilding of Venezuela’s security forces and keep troops in the country
 for years.
There’s no such thing as risk-free military action. 
But in this case, the social, economic, and security costs of 
intervening far outweigh the benefits. Whether the United States 
launched limited air strikes or a full ground invasion, it would almost 
certainly get sucked in to a long, difficult campaign to stabilize 
Venezuela after the initial fighting was over. Such an engagement would 
cost American lives and money and hurt the United States’ standing in 
Latin America. An extended occupation would reignite anti-Americanism in
 the region, particularly if U.S. soldiers committed real or perceived 
abuses, and it would damage U.S. relations with countries outside the 
region, too. Finally, a war-weary American public is unlikely to stand 
for yet another extended military campaign.