Interoperability is the real defence challenge
Defence forces rarely buy entire systems from one vendor. The integration layer that connects them is where programmes succeed or fail.
Radars, radios, command systems, and logistics platforms are almost always bought from different suppliers across different budget cycles. Each performs well in isolation. Together they fail when message formats don't align, timestamps drift across networks, security classifications block essential feeds, or latency thresholds break feedback loops.
The pattern is so consistent that seasoned defence procurement officers say the integration budget is the real programme budget. Everything else is just component shopping. The winning approach is to define the integration architecture — data model, timing discipline, security boundary rules — before any single vendor is selected.
For anyone building or selling technology into defence, the first question is never about features. It is: what does your system speak, how does it handle classification boundaries, and what happens when it needs to talk to something built in a different decade?