By April 1907, Larkin had recruited 2,000 workers into the NUDL union; in May the number had reached 4,500. The women, however, were compelled to return to work the following day. Although Larkin had called on them to join a trade union, neither the NUDL nor any other trade union could admit such a high number of new members at one time. Additionally, no financial assistance was available to the women, many of whom had families to support. Thomas Gallaher refused to recognise the NUDL and had hundreds of blackleg dockers working on
Donegall Quay under the protection of the RIC and troops deployed by
Belfast's Lord Mayor Anthony Ashley-Cooper, 9th Earl of Shaftesbury. Larkin denounced Gallaher in speeches as an "obscene scoundrel". The politicians inside City Hall had to perforce admit a delegation of dockers to their meeting, but they would not make any concessions. Gallaher and the other employers had no means of getting their merchandise out of the port. The
Belfast Newsletter commented on the situation with the following words: "It was remarkable to see the stagnation which existed from the Custom House to the Clarendon Dock. With the exception of an isolated van or lorry driven by the obvious amateur, there was scarcely a sign of life or movement". That July Belfast experienced the most unusual
Twelfth ever witnessed before or since. Instead of the traditional rioting and sectarian clashes which typically accompanied the
Orange Order parades, the strike leaders gave public speeches defending the workers' interests against all forms of sectarianism. On the
Shankill Road, a Protestant area of the city and a regular scene of sectarian clashes, on 26 July 100,000 workers marched in support of the strike in a parade that featured flute bands from both
Unionist and
Nationalist traditions, a very rare occurrence. The parade ended at a mass rally held outside City Hall, where 200,000 demonstrators had gathered. Although it involved members of both the Protestant and Catholic communities, the
Irish Unionist Alliance establishment opposed the strike and subjected Larkin to a sectarian campaign of condemnation, aimed largely at coaxing Protestant workers away from the strike. Crawford encouraged workers to stand firm for the sake not only of organised labour, but also of "the unity of all Irishmen".
Police mutiny escorting a convoy of traction engines driven by blackleg carters along
Royal Avenue in central Belfast The police mutiny broke out when the RIC were ordered to play a more participative role during their routine escort of
traction engines driven by blackleg carters through the city. Blackleg carters had been recruited to drive the traction engines that had been sent to Belfast to deliver the goods which had been unable to leave the port due to the striking carters. The traction engines, equipped with makeshift armour, were almost always blocked
en route by
flying pickets. The RIC were enlisted to provide an escort for the blackleg carters, who constantly came under attack. In one incident in East Belfast, a crowd of shipyard workers threw a telegraph pole at a blackleg carter and his traction engine. The merchandise he had been transporting ended up in the nearby Connswater River. The policemen, however, received no extra pay for the hazardous duty which left them vulnerable to attack nor for the regular breaking up of strikers' pickets; both of which threatened to alienate them from their own communities, and in some cases their own families. On 19 July, RIC Constable William Barrett refused to sit beside the blackleg driver of a traction engine who had been promised personal police protection by his employer. After flatly refusing to obey District Inspector Thomas Keaveney when the latter ordered him to accompany the driver, he was promptly suspended. At the request of the Lord Mayor, extra British Army troops and cavalry were immediately deployed to Belfast to restore order, taking command of strategic areas such as the Docks and city centre; The Dock strike was ultimately ended on 28 August not by Larkin but by James Sexton, the overall head of the NUDL in Britain and Ireland. Sexton found the 10 shillings a week strike payments that had to be made to the dockers crippling high and, fearing that the union might be bankrupted, negotiated with the employers before agreeing to terms that amounted to capitulation by the NUDL. These separate negotiations with the other employers left the dock labourers isolated. In the weeks leading up to the strike's termination, the Unionist press had begun to employ scare-mongering and other divisive methods to alienate the Protestant strikers from their Catholic counterparts by alluding to Irish nationalism and socialism. It also published allegations that although the Protestant strikers had largely borne the brunt of the hardships that ensued during the strike, the Catholic strikers had received larger cash payouts by the Dockers' and Carters' Strike Fund. The
Irish Home Rule Movement, which had been put aside during the lockout, once again emerged as a potential threat to Irish Unionists. In mid-August during the course of a riot in the lower
Falls Road, two Catholics were killed by soldiers. This struck a serious blow to working-class unity. Despite the removal of the Army from the Falls Road area the following day, working-class solidarity was damaged beyond repair. Future
Ulster Volunteer Force (UVF) gunrunner Frederick Crawford expressed the following sentiments in a letter he wrote to a friend regarding the Falls Road riot: "what a blessing all the rioting took place in the Catholic quarter of the city. This branded the whole thing a nationalist movement". The
Belfast Telegraph, as well as Unionist and Nationalist politicians, quickly took the opportunity to exploit the centuries-old sectarian divisions and the two striking groups inevitably drifted back into their former sectarian camps. ==Legacy==