The Prime Minister was in Rome meeting Italian counterpart Giorgia Meloni, whose approach to border control has witnessed a 60% drop in arrivals by sea over the past year.
Sir Keir said this was "likely attributable to the work the Prime Minister has done upstream" by preventing people from travelling in the first place.
The Italian success is widely attributed to controversial deals struck with north African nations, including Libya and Tunisia, from where most migrant boats depart.
Sir Keir added: "I have always made the argument that preventing people leaving their country is far better than trying to deal with those that have arrived. I was very interested in that. In a sense, today was a return - if you like -to British pragmatism."
Deterrent
Ms Meloni confirmed the pair also discussed the Albanian scheme.
Denne historien er fra September 17, 2024-utgaven av Daily Express.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent ? Logg på
Denne historien er fra September 17, 2024-utgaven av Daily Express.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
Allerede abonnent? Logg på
I REMEMBER THINKING "WHERE ARE MY LEGS?'
Double amputee Martine Wright was the worst injured female survivor of the 7/7 London terror atrocities. Ahead of this year's 20th anniversary, she reveals why she chose happiness over hate through campaigning, motherhood and building a sense of purpose
How another UK native could help give a boost to under-threat red squirrels
TORIES are urging ministers to save our red squirrels by reintroducing pine martens and making their grey cousins infertile.
Mortgage approvals are hit by low consumer confidence
THE number of mortgages approved by the UK banking sector fell faster than expected in November.
MO IS BACK FOR MORE
Red-hot Salah out to haunt United again as Arne's top boys smell blood at Anfield
HOWE TO DO IT
Eddie has found right mix of exciting attack and rock-solid defence
Blame City slump on me...not my_players
GUARDIOLA IS BAFFLED BY ALARMING DECLINE
Kasper's career advice pays off for Jakub
LOANS HELP GOALKEEPER
SKY THE LIMIT
How Littler has taken pub game to the stratosphere
Jamie racks up big score
GEORGE'S 300 FOR SARRIES
FESTIVAL JUKEBOX ISSUE
Pauling ponders over his chaser's Cheltenham trip