Merkels Germany, Hundreds of of assaults now reported to police, page-17

Sounds like you want the jackboot nazi/fascists back in action. Where are you going to drive them back to? Are they going to be like they rounded up the Jews at the time of the holocaust. You obviously have little respect for democracy and prefer jackboot control which is precisely what Western democracies fought against in WW2.

The real answer is that the focus needs to be on getting a stable Middle East so that people have no need to flee elsewhere. I agree tight controls are needed around those entering another country seeking refuge. I posted on that in the world news forum where I suggested photographing and fingerprinting as well as making it clear to entrants that any violence or breaches of secular law would result in detention and/or deportation. Anyone unwilling to take an oath of compliance would be returned to their country of origin when safe to do so or face detention. They also need to be informed those that disrespect the laws will never be allowed to achieve residential status in the host country.