He was at President Harry S. Truman's side as an interpreter in key meetings with America's Spanish language- and Portuguese language-speaking Latin American allies.
A large part of John's army had succumbed to sickness, however, and when the invasion was mounted they were far outnumbered by their Portuguese allies.
They generally performed well, winning the respect of their British and Portuguese allies, as well as that of their German opponents.
Dropped off in East Africa, Moura would serve for many years as the effective Portuguese factor and representative to the Sultan of Malindi, an important Portuguese ally in East Africa.
They were one of four English regiments who fought a rearguard action with their Portuguese allies at Campo Maior in 1709, and fought an action on the River Caia.
During the war, Ahmed pioneered the use of cannons supplied by the Ottoman Empire, which were deployed against Solomonic forces and their Portuguese allies led by Cristóvão da Gama.
A Portuguese ally from the earliest trip of Vasco da Gama in 1498, Malindi could usually be counted on to give a warm reception and had plenty of supplies.
A few weeks later, while engaged in a hunting expedition, Staden was captured by a party belonging to the Tupinambá people of Brazil, an enemy group of the Tupinikin people and their Portuguese allies.
Britain moved swiftly to support their Portuguese allies, shipping in supplies and officers to help co-ordinate the defence.
Ghiyasuddin and his Portuguese allies were defeated by Sher Shah Suri and his Afghans on 6 April 1538, as his appeals to Mughal Emperor Humayun went unanswered.