Buy DRS Technologies (DRS), Jim Cramer said on CNBC's "Stop Trading!" segment Friday.Cramer said the defense stock reflects recent changes in the U.S. wages war. "This is the sweet spot -- intelligence in the new military doctrine." The military is "getting away from the Force Protection ( FRPT) MRAPs," to be more "guerilla-like against the guerillas," he said. Cramer also recommended telecom companies Verizon ( VZ) and AT&T ( T). He said their dividend yields make them very attractive. Revising his take on the soda business, Cramer said " Pepsi ( PEP) on a pullback is actually better than Coke ( KO)." He cited better international growth and Coke's saturation of the market as reasons for his reversal.