At the end of 1979, the Soviet government sent in military units to ensure that the country would remain securely under Moscow's influence.
( ( At ( ( the end ) ( of 1979 ) ) ) ( , ( ( the ( Soviet government ) ) ( ( ( sent ( in ( military units ) ) ) ( to ( ensure ( that ( ( the country ) ( would ( ( remain securely ) ( under ( ( Moscow 's ) influence ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (DT the) (NN end)) (PP (IN of) (NP (CD 1979))))) (, ,) (NP (DT the) (JJ Soviet) (NN government)) (VP (VBD sent) (PP (IN in) (NP (JJ military) (NNS units))) (S (VP (TO to) (VP (VB ensure) (SBAR (IN that) (S (NP (DT the) (NN country)) (VP (MD would) (VP (VB remain) (ADVP (RB securely)) (PP (IN under) (NP (NP (NNP Moscow) (POS 's)) (NN influence))))))))))) (. .)))
The Soviet Union had a strong military.  
( ( The ( Soviet Union ) ) ( ( had ( a ( strong military ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Soviet) (NNP Union)) (VP (VBD had) (NP (DT a) (JJ strong) (NN military))) (. .)))