"reinforce security" is correct and usable in written English.
You could use it to mean strengthening or making more secure, for example: "We need to reinforce security measures to keep our documents safe."
The international approach must seek to reinforce security in its broader sense, over the long term.
French officials acknowledged a need to reinforce security around nuclear facilities.
Governors and mayors around the country have taken steps to review emergency procedures and reinforce security.
There is also discussion inside the government about sending troops to the road and rail borders with Austria to reinforce security, Der Spiegel reported.
Managers have been meeting with employees who work on classified projects "to reinforce security awareness," Greg Koller, a spokesman for the laboratory, said.
The mayor of Arauca, Jorge Cedeno, says: "If they have to reinforce security, let them do it, but there must also be social development.
In 2008, the company reinforced security after Tuareg rebels kidnapped four French citizens.
"In Kiev they invaded but we are just protecting the city, reinforcing security.
Strengthened recently with an extra 2,000 troops, ISAF is concentrating on reinforcing security for parliamentary elections scheduled for Sept. 18.
The state news agency MENA quoted General Essawy as saying his priorities included reinforcing security, which has been lax since the police forces melted away on Jan . 28
Paris Police have reinforced security around the American Embassy in the French capital after hundreds gathered outside the building to protest over the weekend.
