As many as 200 former security personnel are under official investigation for alleged crimes during the Troubles in Northern Ireland, according to reports.
According to the Guardian, the MOD estimates there are between 150 and 200 veterans and police being investigated over the troubles in Northern Ireland.
It comes after a former British soldier discovered they will face charges of murder and attempted murder over the Bloody Sunday shootings in Londonderry in 1972.
In response to the Guardian article, a Government spokesman has said: "The system to investigate the past needs to change to provide better outcomes for victims and survivors of the Troubles and to also ensure members of our armed forces and police are not disproportionally affected.
"We have always said that we will not introduce amnesties or immunities from prosecution in Northern Ireland.
"The Ministry of Defence is currently looking at what more can be done to provide further legal protection to service personnel and veterans, including considering legislation."
There is also growing backbench pressure among MPs to prevent historic prosecutions.
Meanwhile, the British and Irish governments are understood to be close to announcing proposals for fresh talks between the political parties in Northern Ireland aimed at restoring power-sharing.
Political pressure has intensified to make progress since the death of journalist Lyra McKee.