The Ministry of Defence (MoD) has allocated nearly £600,000 over the past three years to protect wildlife on its properties in Wales, following environmental regulations established by the Welsh government. These mandates require public bodies to integrate biodiversity considerations into their policies and decision-making processes.

The funds have been used across the MoD's 23,400 hectares of land in Wales, which include key sites such as the Brecon Beacons training area, utilized by the SAS. Among the conservation efforts, the department has maintained grassland mosaics at Castlemartin in Pembrokeshire to support populations of common guillemots, a seabird species not considered endangered.

Other projects have involved conducting surveys of the shrill carder bee, a rare bumblebee species inhabiting flower-rich grasslands. Additionally, the MoD has sponsored doctoral research into the behavior of bottlenose dolphins near its Aberporth military range along the Welsh coast.

To oversee these initiatives, the MoD operates seven conservation groups within Wales, which facilitate monitoring, volunteer engagement, and local expertise. Similar conservation programs have been implemented in England, including pond restoration efforts aimed at supporting female natterjack toad breeding near the military training area at Woolmer Forest.

These biodiversity efforts follow legislation passed by the Senedd in 2016, which obliges public bodies to consider biodiversity as a core aspect of governance. However, some critics point to shortcomings in the enforcement and effectiveness of the law. A 2025 report by Audit Wales, an independent scrutiny organization, concluded that many public authorities had not prioritized the "nature emergency" or fully complied with the duty’s planning and reporting requirements. The report also highlighted that the Welsh Government itself had failed to meet its own planning obligations and lacked effective mechanisms to monitor compliance across public institutions.

Meanwhile, the UK Government faces ongoing scrutiny over how it intends to address a £15 billion shortfall in its defence investment plan. In response, an MoD spokesperson emphasized the department’s commitment to managing its estate in a manner that balances operational readiness with efforts to bolster biodiversity and ecosystem resilience.