The island did not face a real threat of invasion at any point during the war.

The English had known that at home with the air raids, the constant threat of invasion.

At least the immediate threat of invasion had become more remote.

By the time it was completed in 1809, the threat of invasion had passed.

In either case, by the time the troops arrived (1846), the threat of invasion was long over.

In 2002, Iraq was under threat of invasion from western nations.

But for now, the threat of invasion seems to have ebbed.

From the start, the threat of invasion was real.

Markovia was again under threat of invasion by outside forces.

These were built to guard against the threat of foreign invasion.