Japan's conservative leader Shinzo Abe has been named the country's new prime minister, after he swept to power on a hawkish platform of getting tough on diplomacy while fixing the economy.
The powerful lower house named the 58-year-old as leader in an extraordinary session Wednesday afternoon, following a resounding national election victory for his Liberal Democratic Party earlier this month.
As Japan's seventh prime minister in less than seven years, Mr Abe will replace outgoing Prime Minister Yoshihiko Noda whose Democratic Party of Japan suffered a stinging defeat at the polls.
The party, which came to power in 2009, was seen as being punished for policy flip-flops and its clumsy handling of last year's atomic disaster at Fukushima.
As expected, Mr Noda's cabinet resigned en masse Wednesday morning before the LDP-controlled lower house names Abe as Japan's leader, Chief Cabinet Secretary Osamu Fujimura told reporters.
Mr Abe, who previously served as prime minister from 2006 to 2007, is expected to form a new cabinet later in the day as he rushes to draft an extra budget to spur the nation's flagging economy.
Japanese media have suggested Mr Abe was likely to tap close associates and senior party members for key posts.
Taro Aso, another former prime minister in Japan's revolving-door political system, was widely expected to be named as both Mr Abe's deputy and also finance minister, the reports said.
Japan's new foreign minister was likely to be Fumio Kishida, 55, who served as a state minister in charge of Okinawan affairs under Mr Abe's previous tenure.
The expected appointment was seen as a reflection of Mr Abe's desire for progress on the relocation of US military bases in the southern island chain.
Mr Sadakazu Tanigaki, the head of the LDP when the party was in opposition after ruling Japan for most of the past six decades, is tipped to become the country's justice minister, the reports said.
Mr Abe won conservative support with nationalistic pronouncements on diplomacy in the midst of a territorial row with Beijing over a group of East China Sea islands, saying Japan would stand firm on its claim to the chain.
But he quickly toned down the campaign rhetoric and has said he wants improved ties with China, Japan's biggest trading partner.
Mr Abe called for a solution through what he described as "patient exchanges".
The new leader, whose key campaign platform was reviving the world's third-largest economy, has also said he would look at revising Japan's post-war pacifist constitution, alarming officials in China and South Korea.
He has vowed to pressure the Bank of Japan for further easing measures to boost growth, while also promising big government spending to spur the economy.
Analysts say Mr Abe was likely to hold off drastic policy measures ahead of upper house elections next year, while the LDP's moderate junior coalition partner New Komeito could balance his right-leaning instincts.
DPJ's new leader
Meanwhile, former Economics Minister Banri Kaieda has been chosen to replace the outgoing Prime Minister Yoshihiko Noda as the new leader of the Democratic Party of Japan (DPJ)
Mr Kaieda, a vocal critic of the outgoing leadership, reportedly won because party members blamed Mr Noda for his handling of snap elections, and for losing public support after unpopular decisions to raise the sales tax and restart some nuclear reactors.
In a short campaign, neither Mr Kaieda nor his rival, former transport minister Sumio Mabuchi, presented a detailed vision of how they wanted to position the DPJ in relation to the ruling Liberal Democratic Party (LDP)-led coalition.
Mr Kaieda, 63, is best known in Japan for crying in public after being asked to resign as a minister and being berated over the then-government's energy policy in the wake of the Fukushima crisis last year/.