Grant Shapps has been appointed Britain's as new defence minister a mini-reshuffle prompted by Ben Wallace's formal resignation.
Prime Minister Rishi Sunak handed the role overseeing British support to Ukraine during its resistance against the Russian invasion to Mr Schapps this morning.
Mr Wallace earlier confirmed his resignation after four years in the post.
He said the UK's Ministry of Defence is "back on the path to being once again world class".
In a letter to Mr Sunak, he promised him and the government his "continued support" as he stepped down.
Mr Wallace said: "The Ministry of Defence is back on the path to being once again world class with world class people.
"The United Kingdom is respected around the world for our armed forces and that respect has only grown more since the war in Ukraine.
"I know you agree with me that we must not return to the days where defence was viewed as a discretionary spend by government and savings were achieved by hollowing out."
Mr Wallace announced last month that he would resign from the senior Cabinet role at the next reshuffle, bringing an end to his four years in the job.
Mr Sunak praised Mr Wallace, telling him he leaves office with the Prime Minister's "thanks and respect".
Mr Wallace, who served under three prime ministers in his current role, played a key role in the UK's response to Russia's invasion of Ukraine and was a close ally of Boris Johnson.
