Hook
November 27, 2024: Israel and Hezbollah sign a ceasefire. Within 48 hours, both sides report violations. Israel says Hezbollah moved weapons toward the border. Hezbollah says Israeli drones flew over Beirut. Each claims the other broke the agreement first.
What is a ceasefire actually made of? And why do they break down?
The Calculation That Creates The Pause
The 2014 Gaza ceasefire lasted 72 hours. Both sides claimed the other fired first. Neither was lying — because a ceasefire isn’t peace, it’s a deal where continuing to fight costs more than pausing.
The costs might be military: depleted ammunition, exhausted troops. Political: protests in Tel Aviv, parliament threatens a no-confidence vote, coalition partners threaten to withdraw. Strategic: better to consolidate gains than risk losing them. When those costs outweigh the benefits of fighting, both sides stop.
Who agrees matters because not every fighter answers to the same command structure. A ceasefire signed by two governments doesn’t automatically bind a local militia, a splinter faction, or a commander acting on old orders. If the agreement doesn’t include everyone holding a weapon, it’s not really an agreement.
What counts as a breach is often ambiguous. A single artillery shell? A defensive response to incoming fire? Without clarity on what compliance looks like, every action becomes evidence of bad faith or legitimate self-defense depending on who’s describing it.
Ceasefires work when the costs of defection — reputation loss, resumed full-scale fighting, third-party pressure — exceed the benefits of striking now. When that calculation flips, the agreement collapses.
No One Agrees Who Fired First
By July 2006, UNIFIL had 1,980 personnel deployed in southern Lebanon — a force too small to monitor the entire border. Most violations weren’t seen by neutral parties.
Satellites catch some violations. Media catches others. Both sides watch each other. But a satellite photo shows an explosion — not who fired or why. A news report captures smoke rising from a village — not whether that was a breach or retaliation for a prior breach.
When monitoring is weak, enforcement becomes impossible. If you can’t prove who fired first, you can’t impose costs on the defector. If every side can plausibly claim they were defending against the other’s violation, the concept of “violation” loses meaning.
The system depends on clarity about what compliance looks like. Most ceasefires lack it. The result is a gap between what the agreement says on paper and what happens on the ground.
When Some Groups Benefit From Continued Violence
Palestinian Islamic Jihad didn’t sign the 2014 Gaza ceasefire. Hamas had to choose: restrain them or absorb the blame when they fired rockets into Israel.
A militia — what ceasefire negotiators call a spoiler — breaks the agreement to prove its relevance, showing donors and supporters that it’s still a force that can’t be ignored. A commander strikes to extract concessions. A splinter group rejects the ceasefire entirely because the terms don’t address its grievances.
The signatories face a choice. They can try to control the spoilers — shut them down, restrain them, absorb them into the agreement. But if they lack the capacity or will to do that, the ceasefire becomes unenforceable. The other side sees strikes continuing and interprets them as violations by the signatory, even if the signatory didn’t order them.
Or they can retaliate against the spoilers, which risks escalating into full resumption of fighting. Or they can absorb the violations and hope the spoilers run out of steam.
Ceasefires that don’t account for spoilers last days, not months.
The Line Keeps Moving
A strike happens. One side calls it a breach and threatens to resume operations. The other side denies responsibility or claims it was defensive. A back-channel conversation follows: maybe the strike was unauthorized; maybe it was a warning; maybe the terms need adjusting.
The agreement doesn’t collapse immediately. It bends. One side absorbs the violation because the cost of resuming full-scale fighting is still too high. Or both sides quietly revise what “ceasefire” means — tacit acceptance that small strikes will continue as long as they don’t cross certain thresholds.
Public statements shape this process. A government says “we reserve the right to respond to threats” — that’s not breaking the ceasefire, it’s redefining the terms in real-time.
The fragility is structural. The deal only holds as long as all the constraints hold: aligned incentives, credible threats of resumption, functioning monitoring, no spoilers with veto power. Remove monitoring and the enforcement mechanism collapses — observers withdraw, satellite coverage is contested, media attention shifts elsewhere. Spoilers act and the signatories can’t or won’t control them. One side decides the cost of resuming fighting is acceptable because battlefield conditions have shifted, supplies have been replenished, or outside support has changed the calculation.
Close
Next time you see a ceasefire announced, ask: who’s watching, who wasn’t invited, and what happens when the first shell is fired.