A partner controls a system a state depends on in war or crisis and restricts it to pursue its own aims. The dependent state, or an observer that draws the lesson, vows independence. Sovereign replacements usually arrive a decade or more later; in the short run the dependent either aligns more closely with the switch owner or loses the capability when it matters.
On the outbreak of war Britain severed German cables, forcing Germany onto radio and neutral routes that Britain could intercept.
What happened next: British codebreakers read the Zimmermann telegram in 1917; the United States, wary of British control of global communications, backed the creation of RCA in 1919.sovereign-build
Washington withheld support for sterling and emergency oil until Britain and France agreed to withdraw from the canal zone.
What happened next: Britain chose closer alignment with the United States; France pursued autonomy, testing its own nuclear weapon in 1960 and leaving NATO's integrated command in 1966.split
During the Falklands War France halted deliveries to Argentina and assisted Britain with information on the missile.
What happened next: Argentina's small stock of air-launched Exocets sank HMS Sheffield and the Atlantic Conveyor but ran out; Argentina lost the war.defeat
According to Indian officials, the United States declined India's request for GPS data during the Kargil conflict.
What happened next: India approved its regional navigation system in 2006, launched the first satellite in 2013 and completed the NavIC constellation in 2016.sovereign-build
SpaceX did not enable Starlink for a Ukrainian sea-drone attack on Sevastopol, as later acknowledged by Musk.
What happened next: Ukraine's military connectivity moved onto the Pentagon-funded Starshield arrangement, deepening rather than ending dependence on the same supplier.realignment
Share of the 5 cases above that resolved this way. Small samples: treat as a prior, not a forecast.
A ten-day Starlink speed cap disrupted Ukraine's drones and revived an old lesson: allies who own the switch use it, and sovereign fixes take years.
