Several Welsh Labour MPs have been handed new jobs following a reshuffle by Prime Minister Tony Blair.
Don Touhig is leaving the Wales Office
Don Touhig will leave the Wales Office to join the Ministry of Defence.
He will be replaced by Nick Ainger, while Delyn MP David Hanson will go to the Northern Ireland Office after four years as Mr Blair's Parliamentary aide.
Mr Ainger's role as a government whip goes to Cardiff West MP Kevin Brennan. And Pontypridd MP Kim Howells will move to the Foreign Office.
Alun Michael, MP for Cardiff South and Penarth, has been named as industry minister, while there is no new role for Torfaen MP Paul Murphy, who has been replaced as Northern Ireland secretary by Peter Hain.
Mr Touhig, MP for Islwyn, will take the post of Parliamentary secretary in the Ministry of Defence.
Kevin Brennan voted against the war in Iraq
Mr Ainger, who represents Carmarthen West and Pembrokeshire South, will be Parliamentary secretary in the Wales Office.
He has been an MP since 1992, before which he was an oil terminal rigger at Pembroke Dock.
He said he was "delighted" at his new ministerial role.
"I look forward to joining the Wales Office team at such an exciting time, particularly to the publication of the White Paper early in the new Parliament, setting out ways to give enhanced powers to the assembly," he said.
Dr Howells, who has worked as a minister in the transport and education departments, will become minister for the Middle East in the Foreign Office.
Mr Brennan, who voted against the war in Iraq, succeeded Rhodri Morgan as Cardiff West MP in 2001.
Peter Hain, the MP for Neath, had already been given the dual role of Welsh and Northern Ireland Secretary in Tony Blair's post-election cabinet reshuffle.