The key difference between a federal government and a confederate government is in terms of the power assignment. In a federal system, more power is assigned to the central government while for a confederate system, most of the power is given to the states. Hope this answers the question.
The Nazi state sought to establish control in many ways, such as when Adolf Hitler became Chancellor in 1933 and made the first Decree which was passed Feb. 28, 1933, the first Decree abolished all rights the people had in Germany such as freedom of speech, press, and assembly. The Decree also set up concentration camps and sent communists and jews there. On March 3rd, 1933 the Enabling Act was passed, the Act established Hitler's dictatorship in Germany, banning all other political parties. The Nazis took control of the military, media, and judiciary matters of the country. this Act also granted the Gestapo, the Secret Service, and the police large amounts of authority over society, this allowed the Gestapo detain people in their torture chambers, send them to concentration camps and deport them at will.
One of the most significant challenges is building an airplane had to do with "propulsion", since the technology that allowed motors to have enough energy to lift an airplane into the sky with a passenger wasn't available for most of history.
The legislative branch must approve the presideries choice of judges to the judicial branch; may propose constitutional amendments to overturn judicial decisions. The legislative branch has impeachment powers over all federal officers. Judicial over the executive branch.
