Deterrence

In light of the intensifying United States–Israel-Iran War, the prospect of a direct American ground operation has shifted from a remote contingency to a plausible escalation. As strikes expand beyond air and naval targets to critical infrastructure, the conflict is approaching a threshold that could fundamentally alter its trajectory, with risks extending from prolonged warfare to disruption of global energy flows and regional instability.   While Washington may aim for limited objectives through targeted ground incursions, such as seizing key assets like Kharg Island, such operations are unlikely to remain contained. President Trump has acknowledged that “we have a lot of options,” reflecting both strategic flexibility and uncertainty about the next phase.   Iranian leadership has responded in kind. Parliament Speaker Mohammad Bagher Ghalibaf warned that Iranian forces are “waiting for the arrival of American troops on the ground,” signaling that any incursion would trigger immediate and sustained retaliation. In this context, a ground invasion would not be a controlled escalation, but a turning point with far-reaching military, regional, and global consequences.

The Israel-Hamas War has fundamentally altered the dynamics of engagement between Israel and Hezbollah. Before October 7 the two adversaries adhered to a set of engagement rules established after their 2006 conflicts, which restricted their military actions to specific areas like the Shebaa Farms, avoiding deeper incursions into each other's territory. However, over the past nine months, these rules have eroded, leading to an escalation that, while intense, has not yet escalated into full-scale war.   In October 2023, Hezbollah escalated its involvement by launching rockets into Israeli-occupied territories. This marked a significant shift, with both parties engaging in psychological warfare, openly sharing or hinting at intelligence about each other. Hezbollah’s actions soon expanded to include strikes deeper into Israeli territory. In response, Israel targeted Hezbollah military installations near the Israeli-Lebanese border. It conducted a series of targeted assassinations of leaders within the elite Radwan Division, which oversees operations near the border. Israel’s retaliatory measures have since broadened to encompass a wider area of southern Lebanon and the Bekaa Valley, indicating a significant escalation in the conflict dynamics.   The conflict further escalated to encompass the village of Majdal Shams, a Druze village in the Golan Heights. The Israeli military spokesperson reported that a rocket targeting the village was an Iranian-made Falaq-1, launched from the area north of Shebaa in southern Lebanon, with Hezbollah allegedly responsible for the attack.   According to the Israeli account and preliminary investigations, the missile was indeed launched from Lebanese territory, specifically the Shebaa Farms. However, it was not intended to strike Majdal Shams; an Israeli missile interception redirected it, causing it to land in the village.