Surrender was the act of submitting to another power, typically on compulsion or demand.
During the reprisal of the Thal-Dalek battle, the Thals attempted to surrender to the Daleks who invaded the Thal City only for the Daleks to refuse surrender on the orders of the Dalek Supreme. (AUDIO: Return to Skaro)
Time travelling Daleks who waged an invasion of Earth in the year 2415 surrendered after a fault in the Golden Emperor's personal time machine resulted in him being lost in time, leaving them without a leader. (COMIC: The Secret of the Emperor)
In Pete's World, the Tenth Doctor surrendered to a group of the native Cybermen, claiming to volunteer for their upgrade program, on behalf of his human company to spare their lives after the President of Great Britain was killed for his refusal. The Cybermen, however, rejected the surrender, deeming the group to be "rogue elements" subject to deletion, (TV: Rise of the Cybermen) forcing the Doctor to use a TARDIS power cell to destroy the Cybermen. (TV: The Age of Steel)
The Abzorbaloff expected the Doctor to surrender himself so as to save Elton Pope. (TV: Love & Monsters)
In 2007, Cyber-Leader One, after arriving in the Earth of N-Space with an army of five million Cybermen from Pete's World, made a global broadcast from Torchwood Tower ordering the surrender of humanity. Nevertheless, the Cybermen were met with armed resistance, much to the Cyber-Leader's confusion. The Doctor explained:
They're not taking instructions. Don't you understand? You're on every street, you're in their homes, you've got their children! Of course they're going to fight.
Plain white flags were typically used in the event of a surrender. The Doctor, holding a sheet of A4 paper on a stick, met a group of Cybermen, jokingly apologising for not having an actual white flag. (TV: Doomsday)
In 1930, two members of the Cult of Skaro attacked Hooverville to force the humans living there to surrender. (TV: Evolution of the Daleks)
During the Planetary Relocation Incident in the late 2000s, the Commander General of the United Nations broadcasted a message announcing Earth's surrender to the New Dalek Empire following the Daleks' destruction of UNIT. (TV: The Stolen Earth) Sarah Jane Smith, along with Jackie Tyler and Mickey Smith, personally surrendered to the Daleks so that they could board the Crucible. When the TARDIS arrived aboard the Crucible, the Supreme Dalek ordered the Doctor's surrender. Later, the Doctor urged the Children of Time to follow Davros's order to surrender when they were transported to the Vault. (TV: Journey's End)
On 25 December 1851, Mercy Hartigan, speaking through the CyberKing, intended to force the governments of the world to surrender under threat of the CyberKing's firepower. (TV: The Next Doctor)
Daleks which boarded the Combined Galactic Resistance ship Aristotle announced that surrender was not accepted. (TV: Into the Dalek)
In 2019, the Reconnaissance Dalek believed that humanity would surrender, a belief challenged by the Thirteenth Doctor. Later, the Dalek ordered a military force to surrender, only for an unfamiliar sergeant to express surprise that it could talk. Announcing that the "allocated surrender period" had expired, the Dalek proceeded to exterminate the soldiers as a consequence. (TV: Resolution)
In 2021, British Prime Minister Jo Patterson refused to surrender to the New Dalek Army and was promptly exterminated. (TV: Revolution of the Daleks)
During the 2323 Dalek invasion of Earth, the World Government sought to negotiate a total surrender but the Golden Emperor refused to hear the humans out, insisting on subjugating them. (COMIC: Liberation of the Daleks [+]Alan Barnes, DWM Comics (Panini Comics, 2022-2023).)
When the Fifteenth Doctor visited Kastarion 3 with Ruby Sunday, he realised that the war being fought against the Kastarions by the Anglican Marines was fictional, that there were no Kastarions. The entire thing had been fabricated simply to activate the Villengard Algorithm and keep conflict going to facilitate the purchase of Villengard weapons. He advised Mundy Flynn to simply surrender, that if they simply stopped, it would all be over. According to her, however, only the Bishop of the Church could declare a surrender and he would need proof. (TV: Boom [+]Steven Moffat, Doctor Who series 14 (BBC One and Disney+, 2024).)