The Association of Southeast Asian Nations (ASEAN) celebrated its 50th anniversary last year. Since its founding, the bloc has emerged as a beacon of unity in Southeast Asia, although it has often struggled to find consensus among members over key policy issues affecting the region's politics, security and the economy, among other things.

The Sultanate of Brunei, located on the north coast of the island of Borneo, is one of the richest nations in the world. The small, oil-rich country is governed by its sultan as an absolute Muslim monarchy. Islam is the official religion in Brunei, with Sunni Muslims making up about 70 percent of the population. The sultan also sees himself as the main custodian of religious beliefs in Brunei.

Cambodia joined the ASEAN grouping in 1999, and during the past ten years, the Cambodian economy has grown by at least 7 percent year after year. That makes it one of the fastest growing economies in the world. But the unequal distribution of wealth and income is a problem, with many of the nation's around 16-million strong population stuck in abject poverty, especially in rural areas.

Indonesia plays a salient role in ASEAN due to its status as the bloc's most populous member state as well as the world's most populous Muslim nation, with over 250 million inhabitants. The ASEAN secretariat is also based in the country's capital, Jakarta. Indonesia, which comprises around 17,000 islands, is the world's largest archipelago nation and boasts Southeast Asia's biggest economy.

Laos became a member of the ASEAN bloc in 1997. The country has a population of around 6.5 million. Around 80 percent of the inhabitants of the poor, landlocked and isolated communist country depend upon farming for their livelihood. That's how they subsist and feed their families. Laos has an increasingly close relationship with China.

A founding member of ASEAN, Malaysia has the club's third-largest economy. Religion and politics are sensitive issues in Malaysian politics, with the deadly sectarian riots of 1969 often cited as the need to maintain ethnic harmony in the country. Over 60 percent of Malaysia's 30 million inhabitants are Muslim, with the rest adhering to Buddhism, Christianity, Hinduism, and other religions.

Myanmar, which joined the club in 1997, was ruled for decades by a military junta that left it impoverished. The party of Aung San Suu Kyi, the nation's democracy icon, won the first fully free elections for generations, held in 2015. But authorities are struggling to tackle a powerful Buddhist nationalist movement that has grown in strength in recent years and favors the former military rulers.

The Philippines, an archipelago nation consisting of thousands of islands, is one of the most disaster-prone areas in the world. The country has has a population of over 100 million, and one of the fastest expanding economies. But it has suffered major environmental degradation in recent years due to reasons such as mismanagement of resources, deforestation and high population growth.

The wealthy city-state has been a member of ASEAN since the bloc's founding in 1967. The country has a thriving economy, which has grown at a rapid pace since independence, underpinned by its position as a global financial hub. Densely populated Singapore has a multi-racial citizenry as well as tough laws against protests and curbs on press freedom.

Thailand's politics have been characterized by a long series of coups, with the nation's military frequently ousting democratically elected governments. The 2014 coup marked the 12th successful military takeover since Thailand embraced parliamentary democracy 85 years ago. The country boasts Southeast Asia's second-biggest economy and the reputation of being an attractive tourist destination.

Vietnam has been ruled by a one-party communist state since the end of the Vietnam War in 1975. Since 1986, Vietnam has introduced sweeping market reforms to boost growth and development. But the ruling party doesn't permit criticism and the country is ranked among the worst for press freedom. Vietnam joined ASEAN in 1995.

The first Chinese aircraft carrier, the Liaoning, was originally a Soviet model built in 1986. In 1998, the stripped hulk was sold to China by Ukraine and rebuilt by the Dailian Shipbuilding Industry Company in northeastern China. It was completed in 2012 and has been ready for service since 2016.

In recent years, Vietnam has acquired six Russian Kilo-class submarines. Two were delivered in 2017. The subs are nicknamed "black holes" by the US Navy, because they run very quietly and are difficult to locate. They are specialized for missions in shallow waters and for defense against enemy ships and submarines.

The BRP Gregorio del Pilar is the flagship of the Philippine Navy. The vessel is one of three former US Coast Guard cutters that were acquired by the Philippines. The ship was first put in service in 1967 and it was modernized in 2011. In 2012, it was involved in the dispute with the People's Republic of China over Scarborough Shoal.

Indonesia is in the process of buying new ships and modernizing its navy. Pictured here is the KRI Sultan Hasanuddin, a Sigma-class corvette. The ship was built in 2007 in the Netherlands. Germany also supplies warships to countries in the region. The Kasturi-class corvettes in Malaysia and Brunei's Darussalam-class high-seas patrol boats come from German shipyards.

Singapore is unmatched for hi-tech in the region. Since 2007, the city-state has put six Formidable-class stealth ships in service. All of them were built in France.

The only truly global naval power remains the US Navy. The seventh fleet is stationed in the Pacific. It is the largest forward-deployed fleet of the US Navy with 50-60 ships, 350 aircraft and 60,000 personnel. This includes the only US aircraft carrier stationed outside of the US, the USS Ronald Regan, stationed at the US naval base in Yokosuka, Japan.

Aung San Suu Kyi, the daughter of Myanmar's assassinated founding father Aung San, returned to her home country in the late 1980s after studying and starting a family in England. She became a key figure in the 1988 uprisings against the country's military dictatorship. Her National League for Democracy (NLD) was victorious in 1990 elections, but the government refused to honor the vote.

Suu Kyi spent 15 of the 21 years between 1989 and 2010 under house arrest. After 1995, the rights advocate was barred from seeing her two sons and husband, Michael Aris, even after the latter was diagnosed with cancer. Aris, seen here displaying an honorary doctorate awarded to his wife, died in 1999.

Suu Kyi's determination to bring democracy and human rights to her country won her international renown, including the 1991 Nobel Peace Prize. She was so popular that in 2011 famous French director Luc Besson made a biopic of her life starring Malaysian actor Michelle Yeoh. Suu Kyi was often called the world's most famous political prisoner.

Decades of campaigning finally paid off, and in 2012 Suu Kyi was allowed to run in free elections. She won a seat in parliament as Myanmar began its transition away from military government. After general elections in 2015, she became the country's de facto civilian leader, although officially she held the post of foreign minister and state counselor — a role akin to prime minister.

Rohingya, a mostly Muslim ethnic group, had their citizenship revoked by Myanmar's Buddhist-majority government in 1982. Long persecuted, their plight intensified in 2016 when Myanmar's military began what it called "clearance" of illegal immigrants. Groups such as Human Rights Watch have described it as "ethnic cleansing." Thousands have died, and hundreds of thousands have fled their homes.

When she became state counselor in 2016, Suu Kyi set up a commission to investigate claims of atrocities against the Rohingya in Rakhine state. Suu Kyi accused the Rohingya of spreading "a huge iceberg of misinformation," and said she was concerned by the "terrorist threat" posed by extremists. Her stance sparked protests in Muslim-majority countries around the world.

Due to her handling of the Rohingya crisis, Suu Kyi was stripped of various honors and lost much of her international support. The Nobel committee was forced to issue a statement saying that her peace prize could not be revoked. Fellow Nobel laureate Malala Yousafzai called on Suu Kyi to "stop the violence." Suu Kyi said that outsiders could not grasp the complexities of the situation.

In 2020, Myanmar's ruling National League for Democracy party won the November 8 general election, with enough seats to form the next government. However, the military's proxy party, the Union Solidarity and Development party, claimed fraud and demanded a new election supervised by the military. With that came comments alluding to a possible coup. Supporters of the party also marched in protest.

Myanmar's civilian leader, along with several of her political allies, were detained in an early morning raid on February 1, 2021 led by the military. The move came amid escalating tensions between the civilian government and army, which had been in control for decades.The junta claimed electoral fraud, announced a yearlong state of emergency and named a former general as acting president.