It comes after analysis of official figures by the All Party Parliamentary Group (APPG) on Coronavirus – responsible for conducting a cross-party parliamentary inquiry into the Government's handling of the pandemic.
In the two weeks up to 23 July, the number of positive cases increased by 1,474, the steepest rise in 2021 so far, according to Ministry of Defence (MOD) statistics published today.
This brings the total number of positive COVID cases in the Armed Forces, since the beginning of the pandemic, to 11,890 – with 6,510 in the Army, 3,408 in the Navy, and 1,972 in the RAF.
Vice-Chair of the APPG on Coronavirus Clive Lewis said the "shocking figures show the Government is failing to protect our Armed Forces".
Watch: Government 'failed' to protect troops by not prioritising personnel for COVID-19 vaccine.
"Neglecting them and allowing COVID to ravage through their ranks threatens not only the fight against the virus but also our national security," he said.
The MP also urged ministers to increase "vaccine uptake in the Armed Forces and prevent cases from rising further".
It comes after recent figures revealed almost 55,000 Armed Forces personnel have not yet been vaccinated against the virus.
The analysis of the figures also found that coronavirus cases were falling nationally as they increased in the Armed Forces – with daily positive cases among the non-military dropping by 4,993 in the two weeks up to 23 July.
And on 13 July, Baroness Goldie, Minister of State for Defence, also revealed in response to a Parliamentary question that 5,200 Regular and Reservist military personnel were "reported as absent from work" due to COVID-19 self-isolation.
Cover image: Anonymous RAF Regiment member carrying coronavirus test kit (Picture: MOD).