If ICBMs can reach practically anywhere in the northern emisphere why do countries worry about misiles placed in a neighbouring country?

Question

If ICBMs can reach practically anywhere in the northern emisphere why do countries worry about misiles placed in a neighbouring country?

In: 6

Answer 1

It has to do with the amount of time between launch and detonation. The shorter the trip, the shorter the time, the less time they have to defend themselves.