REFILE-UPDATE 1-Troika inspectors back on make-or-break Greek visit

* Inspectors from international lenders return to Athens

* Will decide whether to give more funds from bailout deal

* Greece behind on targets set as condition of bailout

* PM vows to push ahead with spending cuts, attacks foreign

critics

ATHENS, July 24 (Reuters) - Greek Prime Minister Antonis

Samaras said on Tuesday he would push ahead with implementing

deep spending cuts and lashed out at unnamed foreign officials

for sabotaging his country's efforts to solve its problems.

Samaras addressed members of his party as inspectors from

the troika, the trio of international lenders keeping Greece

afloat, returned to Athens to relaunch its stalled economic

plan.

The officials from the International Monetary Fund, European

Commission and European Central Bank must decide whether to keep

the nation hooked up to a 130-billion-euro lifeline or let it go

bust.

In his speech, Samaras said some foreign officials were

making irresponsible comments, predicting Greece won't make it.

"I say it openly and publicly, they undermine our national

effort. We do all we can to bring the country back on its feet

and they do all they can so we can fail," he said.

He did not say who exactly he was referring to but on Sunday

German economy minister Philipp Roesler said he did not expect

Greece could fulfill its requirements and that that would mean

no more money for Athens.

Greece has fallen behind targets agreed as conditions of its

bailout deal, mainly due to three months of political limbo as

it struggled to form a government after two inconclusive

elections but also because of resistance to reforms from unions

and special interests.

While seeking to re-negotiate some of the bailout terms,

Samaras said Greek lawmakers had to demonstrate progress on

spending cuts.

"There are certainly delays in this year's agreed programme

and we must quickly catch up," said Samaras. "Let's not kid

ourselves, there is still big waste in the public sector and it

must stop."

Greece blames a deeper than expected recession, seen at

about 7 percent of GDP this year, for missing its tax revenue

and budget deficit goals and wants two more years' breathing

space to avoid inflicting harsher fiscal measures on a public

already enduring tax hikes, spending and wage cuts and record

joblessness.

Samaras said the economy might shrink by more than 7 percent

in 2012 and it would take Greece two years to return to growth.

Unemployment was close to 24 percent, he said.

Troika officials say Athens is failing to implement measures

that will boost growth, such as planned privatisations, a major

tax reform and the opening of closed markets and professions.

"The programme has not produced the desired results because

it was not implemented. We must first see the government fulfil

its commitments and then decide if it works or if it needs to be

adjusted," a troika source told Reuters on condition of

anonymity.

A troika team arrived in Athens late on Monday. The heads of

the mission arrive later in the week and are scheduled to see

Finance Minister Yannis Stournaras on Thursday.

Samaras will see the troika chiefs on Friday, after meeting

the political leaders backing his government.

Samaras is under political pressure from the Socialist and

leftist parties in the coalition to demand a renegotiation of

the bailout terms which they say punish the poor.

"First we must show the country respects its targets," he

said. "We will then seek to extend the programme as soon as

possible."

REGAINING CREDIBILITY

Stournaras, an economist who chaired a respected think-tank

before becoming minister, has said he will not ask for an

extension or change of terms before proving the new government's

credibility - starting with 11.7 billion euros' worth of cuts

for 2013-14 that should have been drawn up in June.

The government has come up with only about 8 billion euros

of cuts and is scrambling to close the gap, Greek officials

said.

In official statements, both the EU and the IMF have said

the programme was behind schedule and needed to be re-launched

before Greece could get any more funds, with the next tranche

not expected to be disbursed before September.

"An IMF mission will start discussions with the country's

authorities on July 24 on how to bring Greece's economic

program, which is supported by IMF financial assistance, back on

track," an IMF spokesman said on Monday.

In the meantime, the lenders may have to extend Greece a

bridge loan to cover a 3.2 billion euro bond payment due in late

August to stop it going bust and putting Italy and Spain in the

markets' firing line.

Analysts say softening the stance on Greece would create

problems elsewhere. For example, if the troika agrees to give

Greece two more years to cut its deficit to 3 percent of GDP it

might have to lend it an extra 40 billion euros, depriving funds

from larger troubled members such as Spain, said Ben May of

Capital Economics.

"Policymakers face a tough task to reach an agreement on

what Greece must do to receive future bail-out loans that is

deemed acceptable to all parties. For now, then, we still think

that Greece could exit the single currency by the end of the

year," he said in a report.

The troika will stay as long as needed, with some officials

saying the visit would last at least a week and possibly longer.

It may well ask for additional measures this year, which would

almost certainly rock the ruling coalition and ignite protests

from the radical leftist SYRIZA opposition party.

"The government has no business discussing with three clerks

on how to implement a failed programme," SYRIZA president Alexis

Tsipras told his parliamentarians.

"New tough austerity measures are insane and will lead us to

bankruptcy and away from the euro zone."