Its bridgehead is Eurex US, a Chicago-based subsidiary which, despite much lobbying from the big Chicago exchanges, had finally won approval from the Commodity Futures Trading Commission (CFTC), America's main regulator of futures exchanges, a week earlier.
It is worth pointing out that the invasive bridgehead effect is evolutionarily parsimonious: a single evolutionary shift in a single introduced population (the bridgehead) is required whereas multiple changes are required if introduced populations had become invasive independently.
The ambitious tone of Mr Nott's remarks about attacking Port Stanley may be a hint that the Argentinian detachment at Port Darwin and the Goose Green airstrip 20 miles south of the British bridgehead is of insignificant strength.
Part of the reason the British government has been pushing for the bridgehead is to create 'safe havens' for refugees escaping from the harsh Taliban government, the bombing and starvation.
A bridgehead was formed by the division, and it successfully repulsed a number of German counter-attacks until Allied ground forces from the invasion beaches reached its positions.
The British position, shared by the military and ministers, is that ground troops should be used as quickly as possible and that a bridgehead be established around the strategically vital city of Mazar-i-Sharif, as the bombing campaign creates hostility in Muslim countries across the world.
The battalion seized the bridge at Tourmauville at around 1700 and a bridgehead was established.
The construction of the outwork on the opposite bank of the River Drava, designed to offer protection from the north and to serve as a bridgehead, was completed by 1721.
The HV was tasked with advancing towards Glina but the operation failed after a shallow bridgehead was established within two days.
The west half of the bridgehead was destroyed by 31 March, with an estimated 6,000 Soviet casualties.
