Pursuit of Goeben and Breslau - Pursuit

Pursuit

The rated speed of Goeben was 27 kn (31 mph; 50 km/h), but her damaged boilers meant she could only manage 24 kn (28 mph; 44 km/h), and this was only achieved by working men and machinery to the limit; four stokers were killed by scalding steam. Fortunately for Souchon, both British battlecruisers were also suffering from problems with their boilers and were unable to keep Goeben′s pace. The light cruiser HMS Dublin maintained contact, while Indomitable and Indefatigable fell behind. In fog and fading light, Dublin lost contact off Cape San Vito on the north coast of Sicily at 19:37. Goeben and Breslau returned to Messina the following morning, by which time Britain and Germany were at war.

The Admiralty ordered Milne to respect Italian neutrality and stay outside a 6 mi (5.2 nmi; 9.7 km) limit from the Italian coast—which precluded entrance into the passage of the Straits of Messina. Consequently, Milne posted guards on the exits from the Straits. Still expecting Souchon to head for the transports and the Atlantic, he placed two battlecruisers—Inflexible and Indefatigable—to cover the northern exit (which gave access to the western Mediterranean), while the southern exit of the Straits was covered by a single light cruiser, HMS Gloucester. Milne sent Indomitable west to coal at Bizerte, instead of south to Malta.

For Souchon, Messina was no haven. Italian authorities insisted he depart within 24 hours and delayed supplying coal. Provisioning his ships required ripping up the decks of German merchant steamers in harbour and manually shovelling their coal into his bunkers. By the evening of 6 August, and despite the help of 400 volunteers from the merchantmen, he had only taken on 1,500 short tons (1,400 t) which was insufficient to reach Istanbul. Further messages from Tirpitz made his predicament even more dire. He was informed that Austria would provide no naval aid in the Mediterranean and that Ottoman Empire was still neutral and therefore he should no longer make for Istanbul. Faced with the alternative of seeking refuge at Pola, and probably remaining trapped for the rest of the war, Souchon chose to head for Istanbul anyway, his purpose being "to force the Ottoman Empire, even against their will, to spread the war to the Black Sea against their ancient enemy, Russia."

Milne was instructed on 5 August to continue watching the Adriatic for signs of the Austrian fleet and to prevent the German ships joining them. He chose to keep his battlecruisers in the west, dispatching Dublin to join Troubridge′s cruiser squadron in the Adriatic, which he believed would be able to intercept Goeben and Breslau. Troubridge was instructed 'not to get seriously engaged with superior forces', once again intended as a warning against engaging the Austrian fleet. When Goeben and Breslau emerged into the eastern Mediterranean on 6 August, they were met by Gloucester, which, being outgunned, began to shadow the German ships.

Troubridge′s squadron comprised the armoured cruisers HMS Defence, Black Prince, Warrior, Duke of Edinburgh and eight destroyers armed with torpedoes. The cruisers had 9.2 in (230 mm) guns versus the 11 in (280 mm) guns of Goeben and had armour a maximum of 6 in (15 cm) thick compared to the battlecruiser′s 11 in (28 cm) armour belt. This meant that Troubridge′s squadron was not only outranged and vulnerable to Goeben′s powerful guns, but it was unlikely his cruiser′s guns could seriously damage the German ship at all—even at short range. In addition, the British ships were several knots slower than Goeben, despite her damaged boilers, meaning that she could dictate the range of the battle if she spotted the British squadron in advance. Consequently, Troubridge considered his only chance was to locate and engage Goeben in favourable light, at dawn, with Goeben east of his ships and ideally launch a torpedo attack with his destroyers, however at least five of the destroyers did not have enough coal to keep up with the cruisers steaming at full speed. By 04:00 on 7 August, Troubridge realised he would not be able to intercept the German ships before daylight and after some deliberation he signalled Milne with his intentions to break off the chase, mindful of Churchill′s ambiguous order to avoid engaging a "superior force". No reply was received until 10:00, by which time he had withdrawn to Zante to refuel.