Mohammad Ayub Khan (Emir of Afghanistan) in the context of "Pakistan Army"

The Second Anglo-Afghan War (Pashto: د افغان او انگرېز دويم جنگ; Persian: جنگ دوم افغان و انگلیس) was a military conflict fought between the British Raj and the Emirate of Afghanistan from 1878 to 1880, when the latter was ruled by Sher Ali Khan of the Barakzai dynasty, the son of former Emir Dost Mohammad Khan. The war was part of the Great Game between the British and Russian empires.

The war was split into two campaigns – the first began in November 1878 with the British invasion of Afghanistan from India. Sher Ali Khan opted to leave Kabul in order to seek political and military aid from the Russian Empire, and died in Mazar-e Sharif trying to reach the Russian border, leaving the throne to his son Mohammad Yaqub Khan. Ali's successor Yaqub immediately sued for peace and the Treaty of Gandamak was then signed on 26 May 1879. The British sent an envoy and mission led by Sir Louis Cavagnari to Kabul, but on 3 September this mission was massacred and the conflict was reignited by Ayub Khan which led to the abdication of his brother Yaqub.

The Battle of Maiwand (Dari: نبرد میوند, Pashto: د ميوند جگړه), fought on 27 July 1880, was one of the principal battles of the Second Anglo-Afghan War. Under the leadership of Ayub Khan, the Afghan forces defeated a much smaller British force consisting of two brigades of British and Indian troops under Brigadier-General George Burrows, albeit at a high price: between 2,050 and 2,750 Afghan tribal militamen were killed, and probably about 1,500 wounded. British and Indian forces suffered 1,200 dead.

The Battle of Kandahar, 1 September 1880, was the last major conflict of the Second Anglo-Afghan War. The battle in southern Afghanistan was fought between the British forces under command of General Roberts and the Afghan forces led by Ayub Khan. It ended with a decisive British victory over Afghan forces. Ayub Khan, who lost his entire artillery, vast quantities of ammunition, and about 1,000 men killed, became a fugitive along with the small remnants of his army.