# The 1947 Lehi Letter Bomb Plot Against President Harry S. Truman

In mid-1947, as tensions escalated in British Mandate Palestine, the Zionist 
paramilitary group Lehi, also known as the Stern Gang, orchestrated a bold but 
ultimately unsuccessful attempt to target U.S. President Harry S. Truman with 
letter bombs. This little-known incident, overshadowed by Lehi’s more infamous 
acts, reflects the group’s willingness to strike at international figures 
perceived as obstructing their vision for a Jewish state. While the plot failed 
to cause harm, it underscores the volatile intersection of U.S. foreign policy 
and the Jewish insurgency in the lead-up to Israel’s establishment in 1948.

## Background: Lehi and the Struggle for Palestine

Lehi, founded in 1940 by Avraham Stern, was a radical splinter group from the 
larger Irgun Zvai Leumi, both of which sought to end British rule in Palestine 
and establish a Jewish state. Unlike the more restrained Irgun, Lehi embraced 
extreme tactics, including assassinations and bombings, targeting British 
officials, Arab civilians, and even Jewish moderates. By 1947, Lehi’s campaign 
had intensified, driven by frustration with Britain’s restrictive Jewish 
immigration policies—codified in the 1939 White Paper—and the international 
community’s slow progress toward resolving the Palestine question.

President Harry S. Truman, who assumed office in April 1945, was a pivotal 
figure in this context. Sympathetic to Jewish refugees and the Zionist cause, 
Truman supported the establishment of a Jewish homeland, famously recognizing 
Israel minutes after its declaration of independence on May 14, 1948. However, 
in 1947, his administration faced competing pressures: supporting Jewish 
aspirations while maintaining relations with Arab states and avoiding 
entanglement in the British Mandate’s chaos. Truman’s calls for increased 
Jewish immigration to Palestine and his endorsement of a UN partition plan were 
seen as insufficient by groups like Lehi, who viewed any delay or compromise as 
betrayal.

## The Plot: Letter Bombs to the White House

In mid-1947, Lehi operatives mailed a series of letter bombs addressed to 
President Truman and senior White House staff. These devices, disguised as 
ordinary mail, were part of a broader campaign that saw similar bombs sent to 
British officials, including Foreign Secretary Ernest Bevin and Colonial 
Secretary Arthur Creech Jones. The plot was orchestrated by Lehi’s leadership, 
likely including figures like Yitzhak Shamir, a future Israeli Prime Minister 
who played a key role in Lehi’s operations during this period.

The letter bombs were intercepted before reaching their targets, likely by U.S. 
postal or security services, though specific details of the interception remain 
scarce. No explosions occurred, and no injuries or deaths were reported. The 
incident received minimal public attention at the time, possibly to avoid 
inflaming U.S.-Zionist relations or encouraging further attacks.  Historical 
records, including accounts of U.S. presidential assassination attempts and 
Lehi’s activities, confirm the plot’s existence but offer limited specifics, 
reflecting its status as a minor, failed operation.

## Motive: Why Target Truman?

Lehi’s decision to target Truman stemmed from their perception of U.S. policy 
as insufficiently supportive of Zionist goals. Despite Truman’s advocacy for 
Jewish immigration and a Jewish homeland, Lehi viewed his administration’s 
cautious approach—balancing Arab and British interests—as an obstacle. The 
group’s broader strategy aimed to internationalize their “war of liberation” 
against British rule and pressure global powers into decisive action. By 
targeting Truman, Lehi sought to send a message that no leader was beyond their 
reach, hoping to disrupt diplomatic inertia and draw attention to their cause.

The letter bomb tactic was not new for Lehi. They had pioneered its use in 
earlier attacks, including a 1946 attempt on British officials and the 1944 
assassination of Lord Moyne, Britain’s Minister of State in the Middle East.  
The 1947 campaign extended this approach to the U.S., reflecting Lehi’s growing 
audacity and desperation as the Palestine conflict intensified.

## Aftermath and Impact

The foiled plot had little immediate impact. Truman, undeterred, continued to 
shape U.S. policy on Palestine, culminating in his swift recognition of Israel 
in 1948. The incident did not significantly alter U.S.-Zionist relations, 
likely due to its secrecy and the broader context of U.S. support for a Jewish 
state. Lehi, condemned as a terrorist organization by the UN, British, and U.S. 
governments, as well as mainstream Zionist leaders like David Ben-Gurion, was 
disbanded after Israel’s formation in 1948. Its members were integrated into 
the Israeli Defense Forces, and some, like Shamir, rose to prominent political 
roles.

The plot’s obscurity in historical narratives reflects its lack of tangible 
consequences and the sensitivity of U.S.-Israel relations at the time. Unlike 
Lehi’s assassination of Folke Bernadotte in 1948, which provoked international 
outrage, the Truman plot remained a footnote, mentioned in passing in accounts 
of Lehi’s activities or U.S. presidential security.

## Legacy and Historical Significance

The 1947 letter bomb plot against Truman highlights the complexities of the 
pre-Israel Zionist movement, which encompassed both moderate and extremist 
factions. Lehi’s actions, while condemned by figures like Chaim Weizmann and 
Ben-Gurion, were part of a broader struggle that ultimately contributed to 
Israel’s establishment, though their methods alienated allies and complicated 
diplomacy. The incident also underscores the early challenges of U.S.  
involvement in the Middle East, as Truman navigated domestic and international 
pressures to define America’s role in the Arab-Israeli conflict.

Today, the plot is occasionally cited in discussions of U.S. presidential 
assassination attempts or Lehi’s controversial legacy. On platforms like X, 
references to the incident sometimes appear in narratives questioning 
U.S.-Israel relations, but these often lack nuance or exaggerate Lehi’s 
influence. Historians view the plot as a minor but revealing episode, 
illustrating the lengths to which extremist groups would go in pursuit of their 
goals.

## Conclusion

The 1947 Lehi letter bomb plot against President Harry S. Truman was a failed 
attempt to intimidate a key international figure during a pivotal moment in the 
Palestine conflict. While it caused no harm, it reflects the radical tactics of 
Lehi and the high stakes of the Zionist struggle for statehood. Truman’s 
resilience and continued support for a Jewish state helped shape the modern 
Middle East, rendering Lehi’s plot a fleeting, if audacious, act of defiance in 
a transformative era.
