These proved crucial in 1813 and 1814, when Arthur Wellesley, 1st Duke of Wellington's army besieged the city in the Napoleonic Wars, only taking it when they used a bridge of ships across the Adour to position artillery around the city.

By outwitting porteño diplomats in the negotiations that produced the Treaty of October 11, 1811 ( in which Argentina implicitly recognized Paraguayan independence in return for vague promises of a military alliance ), Francia proved that he possessed skills crucial to the future of the country.

Air supply failed to prevent the fall of Dien Bien Phu to the Vietnamese in 1954 but proved crucial in maintaining the American base at Khe Sanh in 1968.

Some people believe that although Torricelli's experiment was crucial, it was Blaise Pascal's experiments that proved the top space really contained vacuum.

Bruce Bueno de Mesquita and Kenneth Shepsle in their Memoir write that " These have proved crucial to predictive tests for political theory.

Charles's decision to wait in the end proved crucial, as it forced the Umayyads to rush uphill and through woods, negating to a large degree the lethality of a cavalry charge.

Mikawa's decision not to attempt to destroy the Allied transport ships when he had the opportunity proved to be a crucial strategic mistake.

From the accidental discovery in 1907 that scurvy could be induced in guinea pigs, to their use to prove the chemical structure of the " ascorbutic factor " in 1932, the guinea pig model proved a crucial part of vitamin C research.

His loyalty to democracy proved to be crucial for the political situation of Norway during and after World War II.

( The opening policy, brought out by Deng Xiaoping, has been proved as a crucial and brilliant turning point in China's modern history, causing the economy to grow at an astonishing rate during the past decades.

The capture of Thessaloniki against Constantine's whim proved a crucial achievement: the pacts of the Balkan League had provided that in the forthcoming war against the Ottoman Empire, the four Balkan allies would provisionally hold any ground they took from the Turks, without contest from the other allies.

Nor does he even attempt a refutation of the crucial point, which Scioppius had proved, as far as a negative can be proved, namely, that William, the last prince of Verona, had no son Nicholas, who would have been the alleged grandfather of Julius.

The scholarly history of the Deuteronomic history parallels that of the Pentateuch: the European tradition history school argued that the narrative was untrustworthy and could not be used to construct a narrative history ; the American Albright school asserted that it could when tested against the archaeological record ; and modern archaeological techniques proved crucial in deciding the issue.

The support of the Nonaligned Movement proved crucial and assured success at the UN.

An added logistical problem resulted from the absence of General Helmuth von Moltke the Younger from the Western Front, which proved to be another crucial ( though not decisive ) factor in the failure of the Schlieffen Plan.

Zia was stationed in Jordan from 1967 to 1970 as a Brigadier, helping in the training of Jordanian soldiers, as well as leading the training mission into battle during the Black September operations as commander of Jordanian 2nd Division, a strategy that proved crucial to King Hussein's remaining in power.

In the 1948 U. S. presidential campaign, Johnson was chief fundraiser for President Truman's election campaign ; the money raised by Johnson proved crucial to Truman's come-from-behind victory in the November elections.

These troops, which were much better disciplined and trained than the volunteer Guards, proved to be crucial for the outcome of the war.

During his second term in the House, O ' Neill was selected to the House Rules Committee where he proved a crucial asset for the Democratic leadership, particularly his mentor, fellow Boston congressman and later Speaker, John William McCormack.

Interventions in intellectual property law, human rights, jurisprudence, criminal law, property law, international law, etc., have proved crucial to the development of those discourses.

Roman predominance proved crucial in religious matters, since King Mirian III and leading nobles converted to Christianity around 317 and declared Christianity as state religion.

The defeat proved to be the crucial turning point in the Peloponnesian War, though Athens struggled on for another decade.

This proved that the engine could restart in space, a crucial part of any manned flight to the Moon.

The Peter family proved wonderful and helpful friends in the following days, Mrs. Peter, little Esther, and Raoul, who generously lent me his sleeping bag for my `` Watch on the Rhine ''.

The power of every ecclesiastical organization has always rested on the miracle, and the clergy have always proved their divine commission as did Elijah ''.

The United States was engaged in a military attack on a peaceful, orderly people governed by a regime that had proved itself the most pro-Western and anti-Communist within any of the new nations -- the only place in Africa, moreover, where a productive relationship between whites and blacks had apparently been achieved.

Without exception Hino's brothers turned to either one or both of their father's occupations, but Hino showed a talent for neither and instead spent most of his time on the beach where he repaired nets and proved immensely popular as a storyteller.

This chain bridge proved less durable than the wooden arch on the Salisbury end.

This material proved to be unsatisfactory, since we could not obtain reproducible results on various portions of the sample.

The supposed tactual sense of spatial location and orientation in the patient and his ability to specify the location of a member, as well as the direction and scope of a movement, passively executed ( with one of his members ), proved to have been, on the contrary, very considerably affected ''.

The conductor did recall having priests as passengers and this satisfied police, although the conductor also pointed out that in heavily Catholic Fall River there were priests riding on almost every trip the streetcar made, so Morse's statement really proved nothing.

About that same time John Crosby's TV series on the popular arts proved again that giving jazz ample breathing space is one of the most sensible things a producer can do.

Berman, whose fame has rested in recent years on his skills as a night club monologist, proved himself very much at home in musical comedy.

This proved conclusively that The Wrangler was a jinx, so he walked on down to Hurrays, an even more glorified gambling den than the Golden Calf.

but on further investigation, the thing proved to be a sweater, of the long-hair variety that sheds onto men's jackets -- pale, pale pink and, according to the label, size thirty-four.

Two works by Mauss in particular proved to have enduring relevance: Essay on the Gift, a seminal analysis of exchange and reciprocity, and his Huxley lecture on the notion of the person, the first comparative study of notions of person and selfhood cross-culturally.

On his arrival at Ephesus a three months ' truce was concluded with Tissaphernes, the satrap of Lydia and Caria, but negotiations conducted during that time proved fruitless, and on its termination Agesilaus raided Phrygia, where he easily won immense booty from the satrap Pharnabazus ; Tissaphernes could offer no assistance, as he had concentrated his troops in Caria.

Gesalec proved incompetent, and in 511 king Theodoric assumed the throne of the kingdom ostensibly on behalf of Amalaric — Heather uses the word " hijacked " to describe his action.

The crusaders ' second attack proved too strong to repel, and Alexios V fled into Thrace on the night of 12 April 1204, accompanied by Eudokia Angelina and her mother Euphrosyne Doukaina Kamatera.

The Weil conjecture on Tamagawa numbers proved resistant for many years.

His work on sheaf theory hardly appears in his published papers, but correspondence with Henri Cartan in the late 1940s, and reprinted in his collected papers, proved most influential.

The mother of a bastard may summon the putative father to petty sessions within 12 months of the birth ( or at any later time if he is proved to have contributed to the child's support within 12 months after the birth ), and the justices, as after hearing evidence on both sides, may, if the mother's evidence be corroborated in some material particular, adjudge the man to be the putative father

The army reforms were not yet completed by the war of 1809, in which Charles acted as commander in chief, yet even so it proved a far more formidable opponent than the old and was only defeated after a desperate struggle involving Austrian victories and large loss of life on both sides.

This ending proved unpopular and Ibsen later regretted his decision on the matter.

Late in 2010, some Congressmen ( after the four-day Bicentennial holiday was proved successful ) asked for a law that would forbid the opening of supermarkets and department stores on Sundays, however retailers claimed that Sunday shopping made about 20 % of their weekly sales, more than other day of the week, thus preventing the law from taking place.

The fiscal discipline set by Finance Minister Djankov proved successful and together with reduced budget spending it placed Bulgarian economy on the stage of steadily though slowly growing in the mids of world crisis.

William Hulbert's National League, which was formed after the National Association proved ineffective, put its emphasis on " clubs " rather than " players ".