Germany has implemented enhanced border controls at all nine of its borders in an effort to tackle illegal immigration. The new controls will be in place for an initial six months and will include temporary structures at land crossings and spot checks by federal police. The move comes as the coalition government aims to address concerns over irregular migration following a series of Islamist attacks. However, the policy has faced criticism internally and risks fracturing Germany's centre-left coalition and alienating its European neighbours. Poland, Austria, and the European Commission have all voiced concerns about the new measures.