How will we repel an imaginary Russian invasion?

The new F-35s will be state-of-the-art in every way except one.

The new F-35s will be state-of-the-art in every way except one.

Canada’s new multibillion-dollar stealth fighters are expected to arrive without the built-in capacity to communicate from the country’s most northerly regions — a gap the air force is trying to close.

The F-35 Lightning will eventually have the ability to communicate with satellites, but the software will not be available in the initial production run, said a senior Lockheed Martin official, who spoke on background. It is expected to be added to the aircraft when production reaches its fourth phase in 2019, but that is not guaranteed because research is still underway.