[6] Pakenham subsequently served on the China Station when he was promoted to captain on 30 June 1903 before he became a Naval Attaché at Tokyo from April 1904 to May 1906.

During this battle, he narrowly missed being hit by fragments of a Russian shell, which killed crewmen standing nearby.

[8] His detailed reports on the battle strongly supported the Royal Navy's trend towards the adoption of an all big-gun fast battleship fleet.

[3][11] While commanding HMS Antrim, escorting King Edward VII to Ireland in July 1907, he was awarded the Member of the Royal Victorian Order.

[15] After Australia was taken out of service following a collision, he transferred his flag to HMS New Zealand: aboard this battlecruiser, he participated in the Battle of Jutland, and was awarded the Knight Commander of the Order of the Bath on 31 May 1916 for his actions.

During the visit of King George V to the Fleet in July 1917, Pakenham was made a Knight Commander of the Royal Victorian Order (KCVO).

[3] After the end of the First World War, Pakenham briefly served as the President of the Royal Naval College, Greenwich from 1919 to 1920 and then as Commander-in-Chief on the North America and West Indies Station from October 1920[17] with HMS Raleigh as his flagship.