President Donald Trump’s administration yesterday outlined an aggressive plan for creating a sixth branch of the US military by 2020 – a Space Force to better confront emerging security threats – but the proposal will need approval from a divided Congress. Critics view the creation of a Space Force as an unnecessary and expensive bureaucratic endeavour and scoff at comparisons to the establishment of the Air Force in 1947. The Space Force would be responsible for a range of crucial space-based US military capabilities, which include everything from satellites enabling the Global Positioning System (GPS) to sensors that help track missile launches.