Yet his war with Iran seems to have been a grave miscalculation - one in which he managed to prevail only after great sacrifices.

It was a grave miscalculation, which would cause unnecessary destruction.

But industry experts point to another reason for the price shock: a grave miscalculation by insurers.

That may have been one of his gravest miscalculations ever.

Consequently, several actions proved to be grave miscalculations, contributing to their eventual defeat.

After nearly a year of campaigning, allowing these troops to slip away from his immediate control was Lee's gravest miscalculation.

Immediately, I realize that I've made a grave miscalculation.

In the short run, that turned out to be a grave miscalculation, as the occupation crumbled under the insurgency's viciousness.

It was a grave miscalculation of the mood the country.

Only now do they realize what a grave miscalculation they made.