1934 – The 1934 ISDT ran once more from germany, at Garmisch-Partenkirchen and the protaganists of the meeting were again the Germans and Great Britian – no great change here.
In fact the German was still made up of Henne, Stelzer and Mauermayer with the sidecar passenger Kraus, all in the saddles of BMW machinery.
They took the Trophy while the other three British riders F.E. Thacker, R. Mc Gregor and L. Heath, won the Silver Vase.

1935 – In this year the ISDT stayed as according to the rules in Germany and took place at Oberstdorf from the 9th to 14th September. This time the German riders took both the prizes.
The experts Ernst Henne, Josef Stelzer, the ex-passenger Kraus and J. Müller took the Trophy after a hard battle with the Czech team on Jawas – they finished just behind the winners while Arthur Geiß, Walfried Winkler and Ewald Kluge took the Silver Vase.
On May 13, 1935, Lieutenant Colonel Thomas Edward Lawrence, a legendary army officer and secret agent in the service of His Britannic Majesty who was able on his own to overturn the global balance, deeply affecting the history of the Middle Eastern countries, and better known by the pseudonym of Lawrence of Arabia, suffered a fatal and at the same time obscure accident.
While riding along a narrow country road on his prestigious Brough Superior, near Wareham, Dorset where he lived, Laurence lost control and fell, suffering serious injuries. He was hospitalized in his home and died a few days later, on May 19th.

1936 – The event ran again in Germany, Freudenstadt, but the British showed up in force, with a squadron of excellent riders who decided to take a sweet revenge.
The crew of V. N. Brittain, G. E. Rowley and W. S. Waycott won the Trophy, while the trio of R. Mc Gregor, J. A. McLeslie and J. C. Edward were awarded the Silver Vase.

1937 – After peremptorily ripping both trophies from the Germans in 1937, the ISDT was back in England, in the now famous Llandrindod Wells.
This time the Germans were present in the home of opponents with an experienced team who, until the end, maintained the primary positions in front of the hosts.
V.N. Brittain, G.E. Rowley and W.S. Waycott managed to reverse the situation and prevail over the Germans in the final round at Donington Park, where they won the Trophy for England for the nineteenth time, while the Silver Vase was given to the Dutch trio composed of AP van Hammersveld, G. Bakker-Schut and J. Moejes.
Meanwhile, in Italy, after the promising debut of the North – South led to the Duce's Cup of 1932 that already stretched its circuit to Naples, in 1937 the first edition of the Milano-Taranto, speed motorcycle race road got underway and was disputed from 1937 to 1940 and from 1950 to 1956.

1938 – This year too the ISDT was held in England, always in Llandrindod Wells.
It was still not known but this was the last occasion on which the two great superpowers, England and Germany, were sporting challengers before the confrontation was moved, tragically, to the military.
The challenge ended in a draw.The British crew, composed of G. E. Rowley, Jack Williams, V.N. Brittain and W. S. Waycott, won the Trophy, while the German team of Georg Meier and Rudolf Seltsam Josef Forstner won the Silver Vase.

1939 – Despite the optimistic statements of the British Prime Minister Arthur Neville Chamberlain, the ISDT edition which was held in Salzburg (Austria) 21st to 26th August 1939, was hopelessly compromised by the now imminent world war.
The invasion of Poland by Germany took place on 1st September 1939, which was followed, on September 3rd, by the declaration of war on Germany, but already the race was suffering under an atmosphere so heavy that many crews, mostly the British abandoned it  for fear of finding the borders closed.
The withdrawals were so hasty that almost all of the British motorcycles and cars awaiting embarkation to return across the Channel were abandoned in France.
The end result was favorable to the Germans and was later canceled by the FIM, and that edition was erased from the sports annals.
Italy attended the event with two teams competing for the Silver Vase: In Italy, Benzoni, Francone and Brunetto, all on Sertum 250s and Italy B, Cavanna of Guzzi, and Ramazotti on a Gilera, Ventura on an MAS.
Obviously, the outbreak of the Second World War halted all activities and the International Six-Days Trial was suspended from 1940 to 1946.
Some time during the war, even the original 1913 cup disappeared and was lost without trace.