ISLAMABAD (AP) — A list of some key events over the last few years leading up to

Pakistan's parliamentary election

on Thursday:

July 25, 2018 — Pakistanis

vote for a new government

in an election

marred by violence

and allegations of fraud.

July 26, 2018 — Former cricket star Imran Khan

wins the polls but has to seek out allies

to form a coalition. A few weeks later, lawmakers

elect him as the country’s prime minister

.

Feb. 26, 2019 — Tensions

escalate sharply in the region

after India launched an airstrike inside Pakistan that New Delhi said targeted a terrorist training camp. Pakistan

shot down two Indian

warplanes and captured a pilot in retaliation.

Aug. 15, 2021 — The Taliban

seize power of Afghanistan

during the final weeks of the U.S. and NATO troop withdrawal from the country after a costly two-decade war. Afghans, fearing for the future,

race to the airport

, one of the last routes out of Afghanistan, and also to the border crossings into Pakistan.

April 9, 2022 — Pakistan’s political opposition

topples Imran Khan in a no-confidence

vote in parliament. The opposition forms a new government, with

Shehbaz Sharif

, a brother of the disgraced former Prime Minister Nawaz Sharif, sworn in days later.

July 5, 2022 —

Heavy rains lash

Pakistan for weeks on end, destroying homes, schools and other buildings and infrastructure. The summer becomes a time of

unprecedented deluges and flash flooding

that kill more than 1,700 people and cause billions of dollars in damage.

Nov. 3, 2022 — Imran Khan

is wounded in a shooting at a rally

in the eastern city of Lahore, an attack his party calls an assassination attempt. One of Khan's supporters is killed and nine people were hurt. The gunman was immediately arrested, and police later said he had acted alone.

Nov. 28, 2022 — The Pakistani Taliban

break off a cease-fire with the government

, and their fighters resume attacks across the country, mainly targeting the country's security forces.

Nov. 29, 2022 — The new army chief and former spymaster Gen. Asim Munir

takes charge of the military

, replacing Gen. Qamar Javed Bajwa, who retired from the post after a six-year term.

Jan. 30, 2023 — A

suicide bomber disguised in a police uniform kills at least 100 people

at a mosque inside a high-security government and police compound in the northwestern city of Peshawar.

May 9, 2023 —

Imran Khan is arrested

and dragged from court where he arrived to face charges in multiple graft cases. His detention sparks days of

violent demonstrations

by angry supporters.

July 12, 2023 — The International Monetary Fund

approves a much-awaited $3 billion

bailout deal, a move that saves Pakistan from defaulting on its debt repayments.

Aug. 5, 2023 —

Imran Khan is sentenced

to three years in prison after a court convicted him of corruption, the first sentence in more than 150 legal cases against him. He is

moved to the high-security Attock Prison

, in eastern Punjab province, notorious for harsh conditions.

Aug. 9, 2023 — Pakistan’s president

dissolves the National Assembly

, or lower house of parliament, a first step in the countdown to the upcoming general election.

Sept. 26, 2023 — Imran Khan is moved from Attock Prison to Adiala Prison in the garrison city of Rawalpindi, near Islamabad.

Oct. 4, 2023 — Pakistan

announces a major crackdown

on foreigners living in the country illegally, including around 1.7 million Afghans. The policy angers Afghanistan's Taliban-led government and draws widespread condemnation from aid agencies, rights groups, and the United Nations.

Oct. 21, 2023 — Three-time Prime Minister Nawaz Sharif

returns to Pakistan

after four years in self-imposed exile abroad to avoid serving prison sentences on corruption charges. His conviction and sentences are overturned on appeal after his return.

Nov. 2, 2023 —

Pakistan’s election oversight body

postpones parliamentary elections for a second time, saying the vote, originally expected in November and

then scheduled for the last week of January

, would instead take place on Feb. 8.

Jan. 8, 2024 — The

Supreme Court scraps a lifetime ban

on politicians with criminal convictions from contesting elections, clearing the way for Nawaz Sharif to seek a fourth term in office. The ruling says convicted politicians would be barred from running only for five years.

Jan. 16 — Iran

launches airstrikes

in Pakistan targeting what it described as bases for a Sunni

militant group

. Pakistan calls the attack an “unprovoked violation” of its airspace and

retaliates two days later

in a

significant escalation

in fraught relations between the neighbors.

Jan. 30 —

Imran Khan is sentenced to 10 years

in prison after being found guilty of leaking state secrets by waving a confidential document during a political rally after his ouster.

Jan. 31 — Khan and his wife, Bushra Bibi, are

sentenced to 14-year terms for corruption

on charges of retaining and selling state gifts in violation of government rules when he was in power.

Feb. 3 — Khan and his wife are

sentenced to seven years

on charges they violated the country's marriage law when they wed in 2018. It's the fourth sentence so far for Khan and the second for his wife.

Feb. 7 — A pair of

powerful bombings at election offices in Baluchistan

kill at least 24 people and wound more than two dozen others on the eve of elections.